12654651456 has 42 divisors (see below), whose sum is σ = 36272275182. Its totient is φ = 4218216960.

The previous prime is 12654651421. The next prime is 12654651461. The reversal of 12654651456 is 65415645621.

12654651456 is a `hidden beast` number, since 1 + 2 + 6 + 546 + 51 + 4 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8582169600 + 4072481856 = 92640^2 + 63816^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10984365 + ... + 10985516.

Almost surely, 2^12654651456 is an apocalyptic number.

12654651456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12654651456 is an abundant number, since it is smaller than the sum of its proper divisors (23617623726).

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

12654651456 is a wasteful number, since it uses less digits than its factorization.

12654651456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21969899 (or 21969886 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 12654651456 in words is "twelve billion, six hundred fifty-four million, six hundred fifty-one thousand, four hundred fifty-six".