75661740043075 has 12 divisors (see below), whose sum is σ = 93822484438728. Its totient is φ = 60528148947200.

The previous prime is 75661740043069. The next prime is 75661740043091. The reversal of 75661740043075 is 57034004716657.

It is not a de Polignac number, because 75661740043075 - 2³ = 75661740043067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29834542 + ... + 32271091.

It is an arithmetic number, because the mean of its divisors is an integer number (7818540369894).

Almost surely, 2^{75661740043075} is an apocalyptic number.

75661740043075 is a deficient number, since it is larger than the sum of its proper divisors (18160744395653).

75661740043075 is a wasteful number, since it uses less digits than its factorization.

75661740043075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62154374 (or 62154369 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 55.

The spelling of 75661740043075 in words is "seventy-five trillion, six hundred sixty-one billion, seven hundred forty million, forty-three thousand, seventy-five".