137161636440 has 32 divisors (see below), whose sum is σ = 411484909680. Its totient is φ = 36576436352.

The previous prime is 137161636399. The next prime is 137161636501. The reversal of 137161636440 is 44636161731.

It is a junction number, because it is equal to n+sod(n) for n = 137161636392 and 137161636401.

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, 571506699 + ... + 571506938.

Almost surely, 2^137161636440 is an apocalyptic number.

137161636440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137161636440 is an abundant number, since it is smaller than the sum of its proper divisors (274323273240).

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

137161636440 is a wasteful number, since it uses less digits than its factorization.

137161636440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143013651 (or 1143013647 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 137161636440 in words is "one hundred thirty-seven billion, one hundred sixty-one million, six hundred thirty-six thousand, four hundred forty".