1056311542161 has 24 divisors (see below), whose sum is σ = 1574311275264. Its totient is φ = 682119118080.

The previous prime is 1056311542127. The next prime is 1056311542259. The reversal of 1056311542161 is 1612451136501.

1056311542161 is a `hidden beast` number, since 1 + 0 + 5 + 63 + 115 + 421 + 61 = 666.

It is not a de Polignac number, because 1056311542161 - 2²² = 1056307347857 is a prime.

It is a super-2 number, since 2×1056311542161² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056311542361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12831085 + ... + 12913146.

It is an arithmetic number, because the mean of its divisors is an integer number (65596303136).

Almost surely, 2^{1056311542161} is an apocalyptic number.

It is an amenable number.

1056311542161 is a deficient number, since it is larger than the sum of its proper divisors (517999733103).

1056311542161 is a wasteful number, since it uses less digits than its factorization.

1056311542161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25744381 (or 25744378 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

Adding to 1056311542161 its reverse (1612451136501), we get a palindrome (2668762678662).

The spelling of 1056311542161 in words is "one trillion, fifty-six billion, three hundred eleven million, five hundred forty-two thousand, one hundred sixty-one".