670665054 has 8 divisors (see below), whose sum is σ = 1341330120. Its totient is φ = 223555016.

The previous prime is 670665019. The next prime is 670665133. The reversal of 670665054 is 450566076.

It is a sphenic number, since it is the product of 3 distinct primes.

670665054 is an admirable number.

It is a super-2 number, since 2×670665054² = 899583229313645832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55888749 + ... + 55888760.

It is an arithmetic number, because the mean of its divisors is an integer number (167666265).

Almost surely, 2^670665054 is an apocalyptic number.

670665054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

670665054 is a wasteful number, since it uses less digits than its factorization.

670665054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111777514.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 670665054 is about 25897.2016635002. The cubic root of 670665054 is about 875.3234413512.

The spelling of 670665054 in words is "six hundred seventy million, six hundred sixty-five thousand, fifty-four".