622667636955 has 144 divisors (see below), whose sum is σ = 1395695718144. Its totient is φ = 254275822080.

The previous prime is 622667636939. The next prime is 622667636957. The reversal of 622667636955 is 559636766226.

622667636955 is a `hidden beast` number, since 6 + 2 + 266 + 7 + 6 + 369 + 5 + 5 = 666.

It is not a de Polignac number, because 622667636955 - 2⁴ = 622667636939 is a prime.

It is a super-2 number, since 2×622667636955² (a number of 24 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 622667636892 and 622667636901.

It is not an unprimeable number, because it can be changed into a prime (622667636957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 538257 + ... + 1238973.

It is an arithmetic number, because the mean of its divisors is an integer number (9692331376).

Almost surely, 2^622667636955 is an apocalyptic number.

622667636955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

622667636955 is an abundant number, since it is smaller than the sum of its proper divisors (773028081189).

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

622667636955 is a wasteful number, since it uses less digits than its factorization.

622667636955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700786 (or 700776 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 63.

The spelling of 622667636955 in words is "six hundred twenty-two billion, six hundred sixty-seven million, six hundred thirty-six thousand, nine hundred fifty-five".