1315165587904 has 56 divisors (see below), whose sum is σ = 3078820855808. Its totient is φ = 545460376320.

The previous prime is 1315165587889. The next prime is 1315165587917. The reversal of 1315165587904 is 4097855615131.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1315165587904² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47335104 + ... + 47362879.

Almost surely, 2^{1315165587904} is an apocalyptic number.

1315165587904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1315165587904 is an abundant number, since it is smaller than the sum of its proper divisors (1763655267904).

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

1315165587904 is an equidigital number, since it uses as much as digits as its factorization.

1315165587904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94698033 (or 94698023 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 1315165587904 in words is "one trillion, three hundred fifteen billion, one hundred sixty-five million, five hundred eighty-seven thousand, nine hundred four".