20551612760120 has 64 divisors (see below), whose sum is σ = 52419093300000. Its totient is φ = 7188904217088.

The previous prime is 20551612760053. The next prime is 20551612760143. The reversal of 20551612760120 is 2106721615502.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040051495 + ... + 1040071254.

Almost surely, 2^{20551612760120} is an apocalyptic number.

20551612760120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20551612760120 is an abundant number, since it is smaller than the sum of its proper divisors (31867480539880).

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

20551612760120 is a wasteful number, since it uses less digits than its factorization.

20551612760120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080122792 (or 2080122788 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 20551612760120 in words is "twenty trillion, five hundred fifty-one billion, six hundred twelve million, seven hundred sixty thousand, one hundred twenty".