20120537243600 has 60 divisors (see below), whose sum is σ = 50883779732640. Its totient is φ = 7624624636800.

The previous prime is 20120537243537. The next prime is 20120537243623. The reversal of 20120537243600 is 634273502102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323711956 + ... + 1323727155.

It is an arithmetic number, because the mean of its divisors is an integer number (848062995544).

Almost surely, 2^{20120537243600} is an apocalyptic number.

20120537243600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120537243600 is an abundant number, since it is smaller than the sum of its proper divisors (30763242489040).

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

20120537243600 is a wasteful number, since it uses less digits than its factorization.

20120537243600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647439148 (or 2647439137 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 20120537243600 in words is "twenty trillion, one hundred twenty billion, five hundred thirty-seven million, two hundred forty-three thousand, six hundred".