101642364460621 has 2 divisors, whose sum is σ = 101642364460622. Its totient is φ = 101642364460620.

The previous prime is 101642364460547. The next prime is 101642364460639. The reversal of 101642364460621 is 126064463246101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65548535402025 + 36093829058596 = 8096205^2 + 6007814^2 .

It is a cyclic number.

It is not a de Polignac number, because 101642364460621 - 2²⁵ = 101642330906189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101642364460691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50821182230310 + 50821182230311.

It is an arithmetic number, because the mean of its divisors is an integer number (50821182230311).

Almost surely, 2^{101642364460621} is an apocalyptic number.

It is an amenable number.

101642364460621 is a deficient number, since it is larger than the sum of its proper divisors (1).

101642364460621 is an equidigital number, since it uses as much as digits as its factorization.

101642364460621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 101642364460621 in words is "one hundred one trillion, six hundred forty-two billion, three hundred sixty-four million, four hundred sixty thousand, six hundred twenty-one".