671155501263605 has 32 divisors (see below), whose sum is σ = 809117918719488. Its totient is φ = 534439693480000.

The previous prime is 671155501263553. The next prime is 671155501263613. The reversal of 671155501263605 is 506362105551176.

It is not a de Polignac number, because 671155501263605 - 2³⁸ = 670880623356661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32766454694 + ... + 32766475176.

It is an arithmetic number, because the mean of its divisors is an integer number (25284934959984).

Almost surely, 2^{671155501263605} is an apocalyptic number.

It is an amenable number.

671155501263605 is a deficient number, since it is larger than the sum of its proper divisors (137962417455883).

671155501263605 is a wasteful number, since it uses less digits than its factorization.

671155501263605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36337.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 671155501263605 in words is "six hundred seventy-one trillion, one hundred fifty-five billion, five hundred one million, two hundred sixty-three thousand, six hundred five".