1156154317968 has 80 divisors (see below), whose sum is σ = 3255233526720. Its totient is φ = 351453752832.

The previous prime is 1156154317919. The next prime is 1156154317973. The reversal of 1156154317968 is 8697134516511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11109723 + ... + 11213306.

It is an arithmetic number, because the mean of its divisors is an integer number (40690419084).

Almost surely, 2^{1156154317968} is an apocalyptic number.

It is an amenable number.

1156154317968 is an abundant number, since it is smaller than the sum of its proper divisors (2099079208752).

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

1156154317968 is a wasteful number, since it uses less digits than its factorization.

1156154317968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323136 (or 22323130 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The spelling of 1156154317968 in words is "one trillion, one hundred fifty-six billion, one hundred fifty-four million, three hundred seventeen thousand, nine hundred sixty-eight".