1163372544 has 120 divisors (see below), whose sum is σ = 3475401930. Its totient is φ = 387735552.

The previous prime is 1163372521. The next prime is 1163372549. The reversal of 1163372544 is 4452733611.

1163372544 is a `hidden beast` number, since 1 + 16 + 33 + 72 + 544 = 666.

It can be written as a sum of positive squares in only one way, i.e., 812934144 + 350438400 = 28512^2 + 18720^2 .

It is a super-2 number, since 2×1163372544² = 2706871352266063872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1163372499 and 1163372508.

It is not an unprimeable number, because it can be changed into a prime (1163372549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 162382 + ... + 169394.

Almost surely, 2^1163372544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163372544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737700965).

1163372544 is an abundant number, since it is smaller than the sum of its proper divisors (2312029386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163372544 is an frugal number, since it uses more digits than its factorization.

1163372544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047 (or 7018 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 1163372544 is about 34108.2474483812. The cubic root of 1163372544 is about 1051.7348626066.

The spelling of 1163372544 in words is "one billion, one hundred sixty-three million, three hundred seventy-two thousand, five hundred forty-four".