100626164621 has 2 divisors, whose sum is σ = 100626164622. Its totient is φ = 100626164620.

The previous prime is 100626164593. The next prime is 100626164629. The reversal of 100626164621 is 126461626001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54964458025 + 45661706596 = 234445^2 + 213686^2 .

It is a cyclic number.

It is not a de Polignac number, because 100626164621 - 2¹⁸ = 100625902477 is a prime.

It is a super-3 number, since 3×100626164621³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100626164629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50313082310 + 50313082311.

It is an arithmetic number, because the mean of its divisors is an integer number (50313082311).

Almost surely, 2^100626164621 is an apocalyptic number.

It is an amenable number.

100626164621 is a deficient number, since it is larger than the sum of its proper divisors (1).

100626164621 is an equidigital number, since it uses as much as digits as its factorization.

100626164621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 100626164621 in words is "one hundred billion, six hundred twenty-six million, one hundred sixty-four thousand, six hundred twenty-one".