20272137554420 has 24 divisors (see below), whose sum is σ = 42571577174784. Its totient is φ = 8108838200736.

The previous prime is 20272137554401. The next prime is 20272137554443. The reversal of 20272137554420 is 2445573127202.

It is a super-2 number, since 2×20272137554420² (a number of 27 digits) contains 22 as substring.

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, 14294309 + ... + 15648371.

It is an arithmetic number, because the mean of its divisors is an integer number (1773815715616).

Almost surely, 2^{20272137554420} is an apocalyptic number.

20272137554420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20272137554420 is an abundant number, since it is smaller than the sum of its proper divisors (22299439620364).

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

20272137554420 is a wasteful number, since it uses less digits than its factorization.

20272137554420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102639 (or 2102637 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 44.

The spelling of 20272137554420 in words is "twenty trillion, two hundred seventy-two billion, one hundred thirty-seven million, five hundred fifty-four thousand, four hundred twenty".