515215215066 has 32 divisors (see below), whose sum is σ = 1041054643008. Its totient is φ = 169972104960.

The previous prime is 515215215061. The next prime is 515215215139. The reversal of 515215215066 is 660512512515.

It is not an unprimeable number, because it can be changed into a prime (515215215061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81361 + ... + 1018356.

It is an arithmetic number, because the mean of its divisors is an integer number (32532957594).

Almost surely, 2^515215215066 is an apocalyptic number.

515215215066 is an abundant number, since it is smaller than the sum of its proper divisors (525839427942).

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

515215215066 is a wasteful number, since it uses less digits than its factorization.

515215215066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100526.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 515215215066 in words is "five hundred fifteen billion, two hundred fifteen million, two hundred fifteen thousand, sixty-six".