641360671 has 16 divisors (see below), whose sum is σ = 743904000. Its totient is φ = 541585728.

The previous prime is 641360669. The next prime is 641360737. The reversal of 641360671 is 176063146.

It is a cyclic number.

It is not a de Polignac number, because 641360671 - 2¹ = 641360669 is a prime.

It is a super-2 number, since 2×641360671² = 822687020611140482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641360971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236280 + ... + 238978.

It is an arithmetic number, because the mean of its divisors is an integer number (46494000).

Almost surely, 2^641360671 is an apocalyptic number.

641360671 is a deficient number, since it is larger than the sum of its proper divisors (102543329).

641360671 is a wasteful number, since it uses less digits than its factorization.

641360671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 641360671 is about 25325.0996246807. The cubic root of 641360671 is about 862.3841680476.

The spelling of 641360671 in words is "six hundred forty-one million, three hundred sixty thousand, six hundred seventy-one".