1061161344 has 128 divisors (see below), whose sum is σ = 3208716000. Its totient is φ = 345047040.

The previous prime is 1061161337. The next prime is 1061161349. The reversal of 1061161344 is 4431611601.

1061161344 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 1 + 613 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1061161344² = 2252126795999772672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061161349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137952 + ... + 145440.

Almost surely, 2^1061161344 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 1061161344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604358000).

1061161344 is an abundant number, since it is smaller than the sum of its proper divisors (2147554656).

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

1061161344 is an equidigital number, since it uses as much as digits as its factorization.

1061161344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553 (or 7535 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1061161344 is about 32575.4715084832. The cubic root of 1061161344 is about 1019.9850516840.

Adding to 1061161344 its reverse (4431611601), we get a palindrome (5492772945).

The spelling of 1061161344 in words is "one billion, sixty-one million, one hundred sixty-one thousand, three hundred forty-four".