12051515296 has 24 divisors (see below), whose sum is σ = 23735651940. Its totient is φ = 6023413248.

The previous prime is 12051515269. The next prime is 12051515299. The reversal of 12051515296 is 69251515021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11484122896 + 567392400 = 107164^2 + 23820^2 .

It is not an unprimeable number, because it can be changed into a prime (12051515299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11790 + ... + 155698.

Almost surely, 2^12051515296 is an apocalyptic number.

12051515296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12051515296 is a deficient number, since it is larger than the sum of its proper divisors (11684136644).

12051515296 is a wasteful number, since it uses less digits than its factorization.

12051515296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146536 (or 146528 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 12051515296 in words is "twelve billion, fifty-one million, five hundred fifteen thousand, two hundred ninety-six".