513392490666 has 144 divisors (see below), whose sum is σ = 1269877190400. Its totient is φ = 149628124800.

The previous prime is 513392490661. The next prime is 513392490673. The reversal of 513392490666 is 666094293315.

It is not an unprimeable number, because it can be changed into a prime (513392490661) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10982110 + ... + 11028758.

It is an arithmetic number, because the mean of its divisors is an integer number (8818591600).

Almost surely, 2^513392490666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513392490666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634938595200).

513392490666 is an abundant number, since it is smaller than the sum of its proper divisors (756484699734).

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

513392490666 is a wasteful number, since it uses less digits than its factorization.

513392490666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46873 (or 46859 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 513392490666 in words is "five hundred thirteen billion, three hundred ninety-two million, four hundred ninety thousand, six hundred sixty-six".