55020164915976 has 32 divisors (see below), whose sum is σ = 148131213236160. Its totient is φ = 16929281512512.

The previous prime is 55020164915951. The next prime is 55020164915977. The reversal of 55020164915976 is 67951946102055.

It is not an unprimeable number, because it can be changed into a prime (55020164915977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88173340900 + ... + 88173341523.

It is an arithmetic number, because the mean of its divisors is an integer number (4629100413630).

Almost surely, 2^{55020164915976} is an apocalyptic number.

It is an amenable number.

55020164915976 is an abundant number, since it is smaller than the sum of its proper divisors (93111048320184).

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

55020164915976 is a wasteful number, since it uses less digits than its factorization.

55020164915976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176346682445 (or 176346682441 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 60.

The spelling of 55020164915976 in words is "fifty-five trillion, twenty billion, one hundred sixty-four million, nine hundred fifteen thousand, nine hundred seventy-six".