671150607505021 has 32 divisors (see below), whose sum is σ = 774603527233536. Its totient is φ = 569611970304000.

The previous prime is 671150607505009. The next prime is 671150607505051. The reversal of 671150607505021 is 120505706051176.

671150607505021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671150607505021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671150607505051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887783436 + ... + 888539098.

It is an arithmetic number, because the mean of its divisors is an integer number (24206360226048).

Almost surely, 2^{671150607505021} is an apocalyptic number.

It is an amenable number.

671150607505021 is a deficient number, since it is larger than the sum of its proper divisors (103452919728515).

671150607505021 is a wasteful number, since it uses less digits than its factorization.

671150607505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757953.

The product of its (nonzero) digits is 441000, while the sum is 46.

The spelling of 671150607505021 in words is "six hundred seventy-one trillion, one hundred fifty billion, six hundred seven million, five hundred five thousand, twenty-one".