1161555462 has 96 divisors (see below), whose sum is σ = 2731622400. Its totient is φ = 355549824.

The previous prime is 1161555427. The next prime is 1161555463. The reversal of 1161555462 is 2645551611.

1161555462 is a `hidden beast` number, since 1 + 1 + 61 + 55 + 546 + 2 = 666.

1161555462 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1161555462² = 2698422182604066888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161555463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2041114 + ... + 2041682.

It is an arithmetic number, because the mean of its divisors is an integer number (28454400).

Almost surely, 2^1161555462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161555462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365811200).

1161555462 is an abundant number, since it is smaller than the sum of its proper divisors (1570066938).

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

1161555462 is a wasteful number, since it uses less digits than its factorization.

1161555462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 767 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1161555462 is about 34081.6000504671. The cubic root of 1161555462 is about 1051.1870059051.

The spelling of 1161555462 in words is "one billion, one hundred sixty-one million, five hundred fifty-five thousand, four hundred sixty-two".