12612550515 has 16 divisors (see below), whose sum is σ = 20875946400. Its totient is φ = 6494738432.

The previous prime is 12612550513. The next prime is 12612550523. The reversal of 12612550515 is 51505521621.

It is a cyclic number.

It is not a de Polignac number, because 12612550515 - 2¹ = 12612550513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12612550513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14496750 + ... + 14497619.

It is an arithmetic number, because the mean of its divisors is an integer number (1304746650).

Almost surely, 2^12612550515 is an apocalyptic number.

12612550515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12612550515 is a deficient number, since it is larger than the sum of its proper divisors (8263395885).

12612550515 is a wasteful number, since it uses less digits than its factorization.

12612550515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28994406.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 12612550515 in words is "twelve billion, six hundred twelve million, five hundred fifty thousand, five hundred fifteen".