670168044 has 144 divisors (see below), whose sum is σ = 2152550400. Its totient is φ = 171020160.

The previous prime is 670167947. The next prime is 670168061. The reversal of 670168044 is 440861076.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98257 + ... + 104855.

Almost surely, 2^670168044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670168044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076275200).

670168044 is an abundant number, since it is smaller than the sum of its proper divisors (1482382356).

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

670168044 is a wasteful number, since it uses less digits than its factorization.

670168044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660 (or 6655 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 670168044 is about 25887.6040606310. The cubic root of 670168044 is about 875.1071624942.

The spelling of 670168044 in words is "six hundred seventy million, one hundred sixty-eight thousand, forty-four".