641415167 has 8 divisors (see below), whose sum is σ = 677689200. Its totient is φ = 605392704.

The previous prime is 641415163. The next prime is 641415197. The reversal of 641415167 is 761514146.

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

It is a cyclic number.

It is not a de Polignac number, because 641415167 - 2² = 641415163 is a prime.

It is a super-2 number, since 2×641415167² = 822826832915275778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641415161) 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, 57638 + ... + 67859.

It is an arithmetic number, because the mean of its divisors is an integer number (84711150).

Almost surely, 2^641415167 is an apocalyptic number.

641415167 is a deficient number, since it is larger than the sum of its proper divisors (36274033).

641415167 is a wasteful number, since it uses less digits than its factorization.

641415167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125785.

The product of its digits is 20160, while the sum is 35.

The square root of 641415167 is about 25326.1755304665. The cubic root of 641415167 is about 862.4085927635.

The spelling of 641415167 in words is "six hundred forty-one million, four hundred fifteen thousand, one hundred sixty-seven".