671506662 has 32 divisors (see below), whose sum is σ = 1376559360. Its totient is φ = 218262240.

The previous prime is 671506657. The next prime is 671506663. The reversal of 671506662 is 266605176.

It is a super-2 number, since 2×671506662² = 901842394220764488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 671506662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671506663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181087 + ... + 184757.

It is an arithmetic number, because the mean of its divisors is an integer number (43017480).

Almost surely, 2^671506662 is an apocalyptic number.

671506662 is an abundant number, since it is smaller than the sum of its proper divisors (705052698).

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

671506662 is a wasteful number, since it uses less digits than its factorization.

671506662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 671506662 is about 25913.4455833260. The cubic root of 671506662 is about 875.6894319311.

The spelling of 671506662 in words is "six hundred seventy-one million, five hundred six thousand, six hundred sixty-two".