55386657396 has 144 divisors (see below), whose sum is σ = 161872686976. Its totient is φ = 15640584192.

The previous prime is 55386657383. The next prime is 55386657409. The reversal of 55386657396 is 69375668355.

55386657396 is a `hidden beast` number, since 5 + 53 + 8 + 6 + 6 + 573 + 9 + 6 = 666.

55386657396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55386657383) and next prime (55386657409).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31702995 + ... + 31704741.

Almost surely, 2^55386657396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55386657396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80936343488).

55386657396 is an abundant number, since it is smaller than the sum of its proper divisors (106486029580).

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

55386657396 is a wasteful number, since it uses less digits than its factorization.

55386657396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158 (or 3153 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 63.

The spelling of 55386657396 in words is "fifty-five billion, three hundred eighty-six million, six hundred fifty-seven thousand, three hundred ninety-six".