74556554556 has 48 divisors (see below), whose sum is σ = 189799424640. Its totient is φ = 22590621120.

The previous prime is 74556554531. The next prime is 74556554573. The reversal of 74556554556 is 65545565547.

It is a junction number, because it is equal to n+sod(n) for n = 74556554496 and 74556554505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671415 + ... + 1715441.

It is an arithmetic number, because the mean of its divisors is an integer number (3954154680).

Almost surely, 2^74556554556 is an apocalyptic number.

It is an amenable number.

74556554556 is an abundant number, since it is smaller than the sum of its proper divisors (115242870084).

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

74556554556 is a wasteful number, since it uses less digits than its factorization.

74556554556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56874 (or 56872 counting only the distinct ones).

The product of its digits is 63000000, while the sum is 57.

The spelling of 74556554556 in words is "seventy-four billion, five hundred fifty-six million, five hundred fifty-four thousand, five hundred fifty-six".