20015431566350 has 192 divisors, whose sum is σ = 43371727603200. Its totient is φ = 6795182016000.

The previous prime is 20015431566349. The next prime is 20015431566409. The reversal of 20015431566350 is 5366513451002.

It is a junction number, because it is equal to n+sod(n) for n = 20015431566298 and 20015431566307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2306718212 + ... + 2306726888.

It is an arithmetic number, because the mean of its divisors is an integer number (225894414600).

Almost surely, 2^{20015431566350} is an apocalyptic number.

20015431566350 is an abundant number, since it is smaller than the sum of its proper divisors (23356296036850).

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

20015431566350 is a wasteful number, since it uses less digits than its factorization.

20015431566350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899 (or 11894 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 20015431566350 in words is "twenty trillion, fifteen billion, four hundred thirty-one million, five hundred sixty-six thousand, three hundred fifty".