137438133020 has 24 divisors (see below), whose sum is σ = 305597731824. Its totient is φ = 51741414656.

The previous prime is 137438133017. The next prime is 137438133061. The reversal of 137438133020 is 20331834731.

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, 202114562 + ... + 202115241.

It is an arithmetic number, because the mean of its divisors is an integer number (12733238826).

Almost surely, 2^137438133020 is an apocalyptic number.

137438133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137438133020 is an abundant number, since it is smaller than the sum of its proper divisors (168159598804).

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

137438133020 is a wasteful number, since it uses less digits than its factorization.

137438133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404229829 (or 404229827 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 137438133020 its reverse (20331834731), we get a palindrome (157769967751).

The spelling of 137438133020 in words is "one hundred thirty-seven billion, four hundred thirty-eight million, one hundred thirty-three thousand, twenty".