315216653666420 has 96 divisors (see below), whose sum is σ = 753542174810880. Its totient is φ = 109638770447360.

The previous prime is 315216653666381. The next prime is 315216653666441. The reversal of 315216653666420 is 24666356612513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327675896 + ... + 328636464.

It is an arithmetic number, because the mean of its divisors is an integer number (7849397654280).

Almost surely, 2^{315216653666420} is an apocalyptic number.

It is an amenable number.

315216653666420 is an abundant number, since it is smaller than the sum of its proper divisors (438325521144460).

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

315216653666420 is a wasteful number, since it uses less digits than its factorization.

315216653666420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025465 (or 1025463 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 315216653666420 in words is "three hundred fifteen trillion, two hundred sixteen billion, six hundred fifty-three million, six hundred sixty-six thousand, four hundred twenty".