1156560493956 has 24 divisors (see below), whose sum is σ = 3084161317440. Its totient is φ = 330445855392.

The previous prime is 1156560493951. The next prime is 1156560493967. The reversal of 1156560493956 is 6593940656511.

It is a self number, because there is not a number n which added to its sum of digits gives 1156560493956.

It is not an unprimeable number, because it can be changed into a prime (1156560493951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6884288571 + ... + 6884288738.

It is an arithmetic number, because the mean of its divisors is an integer number (128506721560).

Almost surely, 2^{1156560493956} is an apocalyptic number.

It is an amenable number.

1156560493956 is an abundant number, since it is smaller than the sum of its proper divisors (1927600823484).

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

1156560493956 is a wasteful number, since it uses less digits than its factorization.

1156560493956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768577323 (or 13768577321 counting only the distinct ones).

The product of its (nonzero) digits is 26244000, while the sum is 60.

The spelling of 1156560493956 in words is "one trillion, one hundred fifty-six billion, five hundred sixty million, four hundred ninety-three thousand, nine hundred fifty-six".