671101636 has 24 divisors (see below), whose sum is σ = 1246271040. Its totient is φ = 315519072.

The previous prime is 671101589. The next prime is 671101643. The reversal of 671101636 is 636101176.

It is a junction number, because it is equal to n+sod(n) for n = 671101598 and 671101607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56391 + ... + 67246.

It is an arithmetic number, because the mean of its divisors is an integer number (51927960).

Almost surely, 2^671101636 is an apocalyptic number.

It is an amenable number.

671101636 is a deficient number, since it is larger than the sum of its proper divisors (575169404).

671101636 is a wasteful number, since it uses less digits than its factorization.

671101636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123723 (or 123721 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 671101636 is about 25905.6294268254. The cubic root of 671101636 is about 875.5133362243.

The spelling of 671101636 in words is "six hundred seventy-one million, one hundred one thousand, six hundred thirty-six".