641056023624143 has 2 divisors, whose sum is σ = 641056023624144. Its totient is φ = 641056023624142.

The previous prime is 641056023624139. The next prime is 641056023624193. The reversal of 641056023624143 is 341426320650146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641056023624143 - 2² = 641056023624139 is a prime.

It is a super-2 number, since 2×641056023624143² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641056023624193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320528011812071 + 320528011812072.

It is an arithmetic number, because the mean of its divisors is an integer number (320528011812072).

Almost surely, 2^{641056023624143} is an apocalyptic number.

641056023624143 is a deficient number, since it is larger than the sum of its proper divisors (1).

641056023624143 is an equidigital number, since it uses as much as digits as its factorization.

641056023624143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 641056023624143 in words is "six hundred forty-one trillion, fifty-six billion, twenty-three million, six hundred twenty-four thousand, one hundred forty-three".