670155550 has 24 divisors (see below), whose sum is σ = 1247259456. Its totient is φ = 267896640.

The previous prime is 670155547. The next prime is 670155569. The reversal of 670155550 is 55551076.

It is a super-2 number, since 2×670155550² = 898216922391605000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107314 + ... + 113386.

It is an arithmetic number, because the mean of its divisors is an integer number (51969144).

Almost surely, 2^670155550 is an apocalyptic number.

670155550 is a deficient number, since it is larger than the sum of its proper divisors (577103906).

670155550 is a wasteful number, since it uses less digits than its factorization.

670155550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292 (or 8287 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 670155550 is about 25887.3627471011. The cubic root of 670155550 is about 875.1017242279.

The spelling of 670155550 in words is "six hundred seventy million, one hundred fifty-five thousand, five hundred fifty".