11875721411601 has 32 divisors (see below), whose sum is σ = 18161659084800. Its totient is φ = 7661561573520.

The previous prime is 11875721411599. The next prime is 11875721411611. The reversal of 11875721411601 is 10611412757811.

11875721411601 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 5 + 7 + 21 + 4 + 11 + 601 = 666.

It is not a de Polignac number, because 11875721411601 - 2¹ = 11875721411599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11875721411611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37607370 + ... + 37921836.

It is an arithmetic number, because the mean of its divisors is an integer number (567551846400).

Almost surely, 2^{11875721411601} is an apocalyptic number.

It is an amenable number.

11875721411601 is a deficient number, since it is larger than the sum of its proper divisors (6285937673199).

11875721411601 is a wasteful number, since it uses less digits than its factorization.

11875721411601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359626 (or 359620 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 45.

The spelling of 11875721411601 in words is "eleven trillion, eight hundred seventy-five billion, seven hundred twenty-one million, four hundred eleven thousand, six hundred one".