12515552330 has 32 divisors (see below), whose sum is σ = 23326658640. Its totient is φ = 4829063680.

The previous prime is 12515552323. The next prime is 12515552369. The reversal of 12515552330 is 3325551521.

It can be written as a sum of positive squares in 8 ways, for example, as 1284003889 + 11231548441 = 35833^2 + 105979^2 .

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, 298460 + ... + 337800.

Almost surely, 2^12515552330 is an apocalyptic number.

12515552330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12515552330 is a deficient number, since it is larger than the sum of its proper divisors (10811106310).

12515552330 is a wasteful number, since it uses less digits than its factorization.

12515552330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40474.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 12515552330 in words is "twelve billion, five hundred fifteen million, five hundred fifty-two thousand, three hundred thirty".