671155501263625 has 16 divisors (see below), whose sum is σ = 957259503517824. Its totient is φ = 460220915151600.

The previous prime is 671155501263617. The next prime is 671155501263649. The reversal of 671155501263625 is 526362105551176.

It is not a de Polignac number, because 671155501263625 - 2³ = 671155501263617 is a prime.

It is a Duffinian 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, 383517428419 + ... + 383517430168.

It is an arithmetic number, because the mean of its divisors is an integer number (59828718969864).

Almost surely, 2^{671155501263625} is an apocalyptic number.

It is an amenable number.

671155501263625 is a deficient number, since it is larger than the sum of its proper divisors (286104002254199).

671155501263625 is an equidigital number, since it uses as much as digits as its factorization.

671155501263625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767034858609 (or 767034858599 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 55.

The spelling of 671155501263625 in words is "six hundred seventy-one trillion, one hundred fifty-five billion, five hundred one million, two hundred sixty-three thousand, six hundred twenty-five".