12550504631640 has 64 divisors (see below), whose sum is σ = 37658435816160. Its totient is φ = 3346185953280.

The previous prime is 12550504631629. The next prime is 12550504631681. The reversal of 12550504631640 is 4613640505521.

12550504631640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12550504631592 and 12550504631601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8958139 + ... + 10263978.

Almost surely, 2^{12550504631640} is an apocalyptic number.

12550504631640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550504631640 is an abundant number, since it is smaller than the sum of its proper divisors (25107931184520).

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

12550504631640 is a wasteful number, since it uses less digits than its factorization.

12550504631640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19227572 (or 19227568 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 12550504631640 in words is "twelve trillion, five hundred fifty billion, five hundred four million, six hundred thirty-one thousand, six hundred forty".