641616020526630 has 64 divisors (see below), whose sum is σ = 1611940003393536. Its totient is φ = 163246238736000.

The previous prime is 641616020526601. The next prime is 641616020526659. The reversal of 641616020526630 is 36625020616146.

It is an interprime number because it is at equal distance from previous prime (641616020526601) and next prime (641616020526659).

It is a super-2 number, since 2×641616020526630² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641616020526630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4858452981 + ... + 4858585040.

It is an arithmetic number, because the mean of its divisors is an integer number (25186562553024).

Almost surely, 2^{641616020526630} is an apocalyptic number.

641616020526630 is an abundant number, since it is smaller than the sum of its proper divisors (970323982866906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641616020526630 is a wasteful number, since it uses less digits than its factorization.

641616020526630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9717038133.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 641616020526630 in words is "six hundred forty-one trillion, six hundred sixteen billion, twenty million, five hundred twenty-six thousand, six hundred thirty".