20548666684502 has 16 divisors (see below), whose sum is σ = 34195007736000. Its totient is φ = 9181992816840.

The previous prime is 20548666684477. The next prime is 20548666684541.

It is a happy number.

20548666684502 is nontrivially palindromic in base 10.

It is a congruent number.

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, 7915509752 + ... + 7915512347.

It is an arithmetic number, because the mean of its divisors is an integer number (2137187983500).

Almost surely, 2^{20548666684502} is an apocalyptic number.

20548666684502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20548666684502 is a deficient number, since it is larger than the sum of its proper divisors (13646341051498).

20548666684502 is a wasteful number, since it uses less digits than its factorization.

20548666684502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15831022171.

The product of its (nonzero) digits is 132710400, while the sum is 62.

The spelling of 20548666684502 in words is "twenty trillion, five hundred forty-eight billion, six hundred sixty-six million, six hundred eighty-four thousand, five hundred two".