11761157561004 has 72 divisors (see below), whose sum is σ = 30835051752960. Its totient is φ = 3775316977152.

The previous prime is 11761157560979. The next prime is 11761157561017. The reversal of 11761157561004 is 40016575116711.

11761157561004 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 11 + 575 + 61 + 0 + 0 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14307037 + ... + 15106740.

It is an arithmetic number, because the mean of its divisors is an integer number (428264607680).

Almost surely, 2^{11761157561004} is an apocalyptic number.

It is an amenable number.

11761157561004 is an abundant number, since it is smaller than the sum of its proper divisors (19073894191956).

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

11761157561004 is a wasteful number, since it uses less digits than its factorization.

11761157561004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29414199 (or 29414194 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The spelling of 11761157561004 in words is "eleven trillion, seven hundred sixty-one billion, one hundred fifty-seven million, five hundred sixty-one thousand, four".