641035401123155 has 16 divisors (see below), whose sum is σ = 770090980990464. Its totient is φ = 512262660480480.

The previous prime is 641035401123137. The next prime is 641035401123199. The reversal of 641035401123155 is 551321104530146.

It is not a de Polignac number, because 641035401123155 - 2⁸ = 641035401122899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680362864 + ... + 1680744306.

It is an arithmetic number, because the mean of its divisors is an integer number (48130686311904).

Almost surely, 2^{641035401123155} is an apocalyptic number.

641035401123155 is a deficient number, since it is larger than the sum of its proper divisors (129055579867309).

641035401123155 is a wasteful number, since it uses less digits than its factorization.

641035401123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751306.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 641035401123155 in words is "six hundred forty-one trillion, thirty-five billion, four hundred one million, one hundred twenty-three thousand, one hundred fifty-five".