513401031660 has 96 divisors (see below), whose sum is σ = 1568329120512. Its totient is φ = 124451147520.

The previous prime is 513401031653. The next prime is 513401031673. The reversal of 513401031660 is 66130104315.

513401031660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12120879 + ... + 12163161.

It is an arithmetic number, because the mean of its divisors is an integer number (16336761672).

Almost surely, 2^513401031660 is an apocalyptic number.

It is an amenable number.

513401031660 is an abundant number, since it is smaller than the sum of its proper divisors (1054928088852).

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

513401031660 is a wasteful number, since it uses less digits than its factorization.

513401031660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60703 (or 60701 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 513401031660 its reverse (66130104315), we get a palindrome (579531135975).

The spelling of 513401031660 in words is "five hundred thirteen billion, four hundred one million, thirty-one thousand, six hundred sixty".