20628067418616 has 128 divisors (see below), whose sum is σ = 60712124659200. Its totient is φ = 5717860792320.

The previous prime is 20628067418599. The next prime is 20628067418731. The reversal of 20628067418616 is 61681476082602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7132365 + ... + 9598268.

It is an arithmetic number, because the mean of its divisors is an integer number (474313473900).

Almost surely, 2^{20628067418616} is an apocalyptic number.

It is an amenable number.

20628067418616 is an abundant number, since it is smaller than the sum of its proper divisors (40084057240584).

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

20628067418616 is a wasteful number, since it uses less digits than its factorization.

20628067418616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16730869 (or 16730865 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 20628067418616 in words is "twenty trillion, six hundred twenty-eight billion, sixty-seven million, four hundred eighteen thousand, six hundred sixteen".