537520993220 has 24 divisors (see below), whose sum is σ = 1128844249344. Its totient is φ = 214998842336.

The previous prime is 537520993199. The next prime is 537520993309. The reversal of 537520993220 is 22399025735.

It is a happy 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, 126854 + ... + 1044573.

It is an arithmetic number, because the mean of its divisors is an integer number (47035177056).

Almost surely, 2^537520993220 is an apocalyptic number.

It is an amenable number.

537520993220 is an abundant number, since it is smaller than the sum of its proper divisors (591323256124).

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

537520993220 is a wasteful number, since it uses less digits than its factorization.

537520993220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194379 (or 1194377 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 537520993220 in words is "five hundred thirty-seven billion, five hundred twenty million, nine hundred ninety-three thousand, two hundred twenty".