1156689052040 has 64 divisors (see below), whose sum is σ = 2742739876800. Its totient is φ = 437810164992.

The previous prime is 1156689052037. The next prime is 1156689052087. The reversal of 1156689052040 is 402509866511.

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, 243842 + ... + 1540401.

It is an arithmetic number, because the mean of its divisors is an integer number (42855310575).

Almost surely, 2^{1156689052040} is an apocalyptic number.

1156689052040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156689052040 is an abundant number, since it is smaller than the sum of its proper divisors (1586050824760).

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

1156689052040 is a wasteful number, since it uses less digits than its factorization.

1156689052040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785126 (or 1785122 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 1156689052040 in words is "one trillion, one hundred fifty-six billion, six hundred eighty-nine million, fifty-two thousand, forty".