51066622020 has 24 divisors (see below), whose sum is σ = 142986541824. Its totient is φ = 13617765856.

The previous prime is 51066621967. The next prime is 51066622039. The reversal of 51066622020 is 2022666015.

51066622020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425555124 + ... + 425555243.

It is an arithmetic number, because the mean of its divisors is an integer number (5957772576).

Almost surely, 2^51066622020 is an apocalyptic number.

It is an amenable number.

51066622020 is an abundant number, since it is smaller than the sum of its proper divisors (91919919804).

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

51066622020 is a wasteful number, since it uses less digits than its factorization.

51066622020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851110379 (or 851110377 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 51066622020 in words is "fifty-one billion, sixty-six million, six hundred twenty-two thousand, twenty".