671264355641 has 12 divisors (see below), whose sum is σ = 765511308240. Its totient is φ = 583708130280.

The previous prime is 671264355599. The next prime is 671264355661. The reversal of 671264355641 is 146553462176.

671264355641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671264355641 - 2¹⁴ = 671264339257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671264355641.

It is not an unprimeable number, because it can be changed into a prime (671264355661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57672851 + ... + 57684488.

It is an arithmetic number, because the mean of its divisors is an integer number (63792609020).

Almost surely, 2^671264355641 is an apocalyptic number.

It is an amenable number.

671264355641 is a deficient number, since it is larger than the sum of its proper divisors (94246952599).

671264355641 is a wasteful number, since it uses less digits than its factorization.

671264355641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115357396 (or 115357373 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The spelling of 671264355641 in words is "six hundred seventy-one billion, two hundred sixty-four million, three hundred fifty-five thousand, six hundred forty-one".