75616345881 has 16 divisors (see below), whose sum is σ = 114407712000. Its totient is φ = 49338324144.

The previous prime is 75616345877. The next prime is 75616345891. The reversal of 75616345881 is 18854361657.

It is a happy number.

75616345881 is a `hidden beast` number, since 7 + 56 + 1 + 6 + 3 + 4 + 588 + 1 = 666.

It is not a de Polignac number, because 75616345881 - 2² = 75616345877 is a prime.

It is a super-2 number, since 2×75616345881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75616345891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29792406 + ... + 29794943.

It is an arithmetic number, because the mean of its divisors is an integer number (7150482000).

Almost surely, 2^75616345881 is an apocalyptic number.

It is an amenable number.

75616345881 is a deficient number, since it is larger than the sum of its proper divisors (38791366119).

75616345881 is a wasteful number, since it uses less digits than its factorization.

75616345881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59587405 (or 59587399 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 75616345881 in words is "seventy-five billion, six hundred sixteen million, three hundred forty-five thousand, eight hundred eighty-one".