671466633765 has 16 divisors (see below), whose sum is σ = 1074357209088. Its totient is φ = 358112006336.

The previous prime is 671466633727. The next prime is 671466633779. The reversal of 671466633765 is 567336664176.

It is a happy number.

671466633765 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 not a de Polignac number, because 671466633765 - 2⁷ = 671466633637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671466633699 and 671466633708.

It is a congruent number.

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, 2225527 + ... + 2509163.

It is an arithmetic number, because the mean of its divisors is an integer number (67147325568).

Almost surely, 2^671466633765 is an apocalyptic number.

It is an amenable number.

671466633765 is a deficient number, since it is larger than the sum of its proper divisors (402890575323).

671466633765 is a wasteful number, since it uses less digits than its factorization.

671466633765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441468.

The product of its digits is 68584320, while the sum is 60.

The spelling of 671466633765 in words is "six hundred seventy-one billion, four hundred sixty-six million, six hundred thirty-three thousand, seven hundred sixty-five".