5556172278420 has 96 divisors (see below), whose sum is σ = 17843478051840. Its totient is φ = 1433850906240.

The previous prime is 5556172278407. The next prime is 5556172278439. The reversal of 5556172278420 is 248722716555.

It is a happy number.

5556172278420 is a `hidden beast` number, since 5 + 5 + 561 + 7 + 2 + 2 + 78 + 4 + 2 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165938227 + ... + 165971706.

It is an arithmetic number, because the mean of its divisors is an integer number (185869563040).

Almost surely, 2^{5556172278420} is an apocalyptic number.

It is an amenable number.

5556172278420 is an abundant number, since it is smaller than the sum of its proper divisors (12287305773420).

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

5556172278420 is a wasteful number, since it uses less digits than its factorization.

5556172278420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331909982 (or 331909974 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 5556172278420 in words is "five trillion, five hundred fifty-six billion, one hundred seventy-two million, two hundred seventy-eight thousand, four hundred twenty".