55622393064 has 256 divisors, whose sum is σ = 182704128000. Its totient is φ = 15343292160.

The previous prime is 55622393023. The next prime is 55622393083. The reversal of 55622393064 is 46039322655.

55622393064 is a `hidden beast` number, since 5 + 562 + 23 + 9 + 3 + 0 + 64 = 666.

It is a super-2 number, since 2×55622393064² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24512922 + ... + 24515190.

It is an arithmetic number, because the mean of its divisors is an integer number (713688000).

Almost surely, 2^55622393064 is an apocalyptic number.

55622393064 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55622393064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91352064000).

55622393064 is an abundant number, since it is smaller than the sum of its proper divisors (127081734936).

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

55622393064 is a wasteful number, since it uses less digits than its factorization.

55622393064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 55622393064 in words is "fifty-five billion, six hundred twenty-two million, three hundred ninety-three thousand, sixty-four".