626164304400243 has 288 divisors, whose sum is σ = 1105372275815808. Its totient is φ = 340266015129600.

The previous prime is 626164304400179. The next prime is 626164304400259. The reversal of 626164304400243 is 342004403461626.

626164304400243 is a `hidden beast` number, since 6 + 2 + 6 + 1 + 64 + 304 + 40 + 0 + 243 = 666.

It is not a de Polignac number, because 626164304400243 - 2⁶ = 626164304400179 is a prime.

It is a super-2 number, since 2×626164304400243² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (626164304400293) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 161507427621 + ... + 161507431497.

It is an arithmetic number, because the mean of its divisors is an integer number (3838098179916).

Almost surely, 2^{626164304400243} is an apocalyptic number.

626164304400243 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

626164304400243 is a deficient number, since it is larger than the sum of its proper divisors (479207971415565).

626164304400243 is a wasteful number, since it uses less digits than its factorization.

626164304400243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403 (or 5393 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 45.

Adding to 626164304400243 its reverse (342004403461626), we get a palindrome (968168707861869).

The spelling of 626164304400243 in words is "six hundred twenty-six trillion, one hundred sixty-four billion, three hundred four million, four hundred thousand, two hundred forty-three".