641344400115 has 16 divisors (see below), whose sum is σ = 1026491913216. Its totient is φ = 341936722400.

The previous prime is 641344400101. The next prime is 641344400129. The reversal of 641344400115 is 511004443146.

It is an interprime number because it is at equal distance from previous prime (641344400101) and next prime (641344400129).

It is not a de Polignac number, because 641344400115 - 2⁷ = 641344399987 is a prime.

It is a super-2 number, since 2×641344400115² (a number of 24 digits) contains 22 as substring.

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, 7054851 + ... + 7145180.

It is an arithmetic number, because the mean of its divisors is an integer number (64155744576).

Almost surely, 2^641344400115 is an apocalyptic number.

641344400115 is a deficient number, since it is larger than the sum of its proper divisors (385147513101).

641344400115 is a wasteful number, since it uses less digits than its factorization.

641344400115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14203050.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 641344400115 in words is "six hundred forty-one billion, three hundred forty-four million, four hundred thousand, one hundred fifteen".