513215531466 has 32 divisors (see below), whose sum is σ = 1120369840128. Its totient is φ = 155432793840.

The previous prime is 513215531441. The next prime is 513215531483. The reversal of 513215531466 is 664135512315.

It is a happy number.

It is a super-2 number, since 2×513215531466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2057770 + ... + 2293653.

It is an arithmetic number, because the mean of its divisors is an integer number (35011557504).

Almost surely, 2^513215531466 is an apocalyptic number.

513215531466 is an abundant number, since it is smaller than the sum of its proper divisors (607154308662).

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

513215531466 is a wasteful number, since it uses less digits than its factorization.

513215531466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353226.

The product of its digits is 324000, while the sum is 42.

The spelling of 513215531466 in words is "five hundred thirteen billion, two hundred fifteen million, five hundred thirty-one thousand, four hundred sixty-six".