12655331554 has 16 divisors (see below), whose sum is σ = 19043551800. Its totient is φ = 6307501824.

The previous prime is 12655331473. The next prime is 12655331581. The reversal of 12655331554 is 45513355621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12393700929 + 261630625 = 111327^2 + 16175^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574554 + ... + 1582570.

Almost surely, 2^12655331554 is an apocalyptic number.

12655331554 is a deficient number, since it is larger than the sum of its proper divisors (6388220246).

12655331554 is a wasteful number, since it uses less digits than its factorization.

12655331554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437.

The product of its digits is 270000, while the sum is 40.

The spelling of 12655331554 in words is "twelve billion, six hundred fifty-five million, three hundred thirty-one thousand, five hundred fifty-four".