670325155 has 4 divisors (see below), whose sum is σ = 804390192. Its totient is φ = 536260120.

The previous prime is 670325099. The next prime is 670325171. The reversal of 670325155 is 551523076.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 670325155 - 2⁹ = 670324643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670325155.

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 3 ways as a sum of consecutive naturals, for example, 67032511 + ... + 67032520.

It is an arithmetic number, because the mean of its divisors is an integer number (201097548).

Almost surely, 2^670325155 is an apocalyptic number.

670325155 is a deficient number, since it is larger than the sum of its proper divisors (134065037).

670325155 is a wasteful number, since it uses less digits than its factorization.

670325155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134065036.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 670325155 is about 25890.6383660195. The cubic root of 670325155 is about 875.1755424674.

The spelling of 670325155 in words is "six hundred seventy million, three hundred twenty-five thousand, one hundred fifty-five".