641625432520101 has 8 divisors (see below), whose sum is σ = 856032935490624. Its totient is φ = 427484108948160.

The previous prime is 641625432520073. The next prime is 641625432520103. The reversal of 641625432520101 is 101025234526146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641625432520101 - 2²⁵ = 641625398965669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641625432520103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66544844020 + ... + 66544853661.

It is an arithmetic number, because the mean of its divisors is an integer number (107004116936328).

Almost surely, 2^{641625432520101} is an apocalyptic number.

It is an amenable number.

641625432520101 is a deficient number, since it is larger than the sum of its proper divisors (214407502970523).

641625432520101 is a wasteful number, since it uses less digits than its factorization.

641625432520101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133089699291.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 641625432520101 in words is "six hundred forty-one trillion, six hundred twenty-five billion, four hundred thirty-two million, five hundred twenty thousand, one hundred one".