671157366 has 32 divisors (see below), whose sum is σ = 1480809600. Its totient is φ = 201094080.

The previous prime is 671157329. The next prime is 671157379. The reversal of 671157366 is 663751176.

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, 51256 + ... + 63003.

It is an arithmetic number, because the mean of its divisors is an integer number (46275300).

Almost surely, 2^671157366 is an apocalyptic number.

671157366 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

671157366 is an abundant number, since it is smaller than the sum of its proper divisors (809652234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671157366 is a wasteful number, since it uses less digits than its factorization.

671157366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114364.

The product of its digits is 158760, while the sum is 42.

The square root of 671157366 is about 25906.7050394295. The cubic root of 671157366 is about 875.5375705107.

The spelling of 671157366 in words is "six hundred seventy-one million, one hundred fifty-seven thousand, three hundred sixty-six".