815303201560 has 64 divisors (see below), whose sum is σ = 1848222852480. Its totient is φ = 323677470720.

The previous prime is 815303201543. The next prime is 815303201651. The reversal of 815303201560 is 65102303518.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204804 + ... + 3449836.

It is an arithmetic number, because the mean of its divisors is an integer number (28878482070).

Almost surely, 2^815303201560 is an apocalyptic number.

It is an amenable number.

815303201560 is an abundant number, since it is smaller than the sum of its proper divisors (1032919650920).

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

815303201560 is a wasteful number, since it uses less digits than its factorization.

815303201560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245668 (or 245664 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 815303201560 in words is "eight hundred fifteen billion, three hundred three million, two hundred one thousand, five hundred sixty".