61554032504 has 16 divisors (see below), whose sum is σ = 118097853720. Its totient is φ = 30061271520.

The previous prime is 61554032489. The next prime is 61554032521. The reversal of 61554032504 is 40523045516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89467727 + ... + 89468414.

Almost surely, 2^61554032504 is an apocalyptic number.

It is an amenable number.

61554032504 is a deficient number, since it is larger than the sum of its proper divisors (56543821216).

61554032504 is a wasteful number, since it uses less digits than its factorization.

61554032504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178936190 (or 178936186 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 61554032504 in words is "sixty-one billion, five hundred fifty-four million, thirty-two thousand, five hundred four".