55670156220 has 96 divisors (see below), whose sum is σ = 178175467008. Its totient is φ = 12722395392.

The previous prime is 55670156209. The next prime is 55670156257. The reversal of 55670156220 is 2265107655.

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, 4663179 + ... + 4675101.

It is an arithmetic number, because the mean of its divisors is an integer number (1855994448).

Almost surely, 2^55670156220 is an apocalyptic number.

It is an amenable number.

55670156220 is an abundant number, since it is smaller than the sum of its proper divisors (122505310788).

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

55670156220 is a wasteful number, since it uses less digits than its factorization.

55670156220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23059 (or 23057 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 55670156220 in words is "fifty-five billion, six hundred seventy million, one hundred fifty-six thousand, two hundred twenty".