315546145430520 has 32 divisors (see below), whose sum is σ = 946638436291920. Its totient is φ = 84145638781440.

The previous prime is 315546145430489. The next prime is 315546145430531. The reversal of 315546145430520 is 25034541645513.

It is a happy number.

It is a super-2 number, since 2×315546145430520² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315546145430520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314775605841 + ... + 1314775606080.

Almost surely, 2^{315546145430520} is an apocalyptic number.

315546145430520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315546145430520 is an abundant number, since it is smaller than the sum of its proper divisors (631092290861400).

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

315546145430520 is a wasteful number, since it uses less digits than its factorization.

315546145430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629551211935 (or 2629551211931 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 315546145430520 in words is "three hundred fifteen trillion, five hundred forty-six billion, one hundred forty-five million, four hundred thirty thousand, five hundred twenty".