55982163636 has 48 divisors (see below), whose sum is σ = 165873079680. Its totient is φ = 15994903680.

The previous prime is 55982163619. The next prime is 55982163661. The reversal of 55982163636 is 63636128955.

It is a happy number.

55982163636 is a `hidden beast` number, since 5 + 598 + 2 + 16 + 3 + 6 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 37024485 + ... + 37025996.

It is an arithmetic number, because the mean of its divisors is an integer number (3455689160).

Almost surely, 2^55982163636 is an apocalyptic number.

It is an amenable number.

55982163636 is an abundant number, since it is smaller than the sum of its proper divisors (109890916044).

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

55982163636 is a wasteful number, since it uses less digits than its factorization.

55982163636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74050501 (or 74050493 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 55982163636 in words is "fifty-five billion, nine hundred eighty-two million, one hundred sixty-three thousand, six hundred thirty-six".