670255157 has 8 divisors (see below), whose sum is σ = 787432800. Its totient is φ = 562451760.

The previous prime is 670255133. The next prime is 670255171. The reversal of 670255157 is 751552076.

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

It is not a de Polignac number, because 670255157 - 2¹⁴ = 670238773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670255157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670251157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343407 + ... + 2343692.

It is an arithmetic number, because the mean of its divisors is an integer number (98429100).

Almost surely, 2^670255157 is an apocalyptic number.

It is an amenable number.

670255157 is a deficient number, since it is larger than the sum of its proper divisors (117177643).

670255157 is a wasteful number, since it uses less digits than its factorization.

670255157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687123.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 670255157 is about 25889.2865293735. The cubic root of 670255157 is about 875.1450783115.

The spelling of 670255157 in words is "six hundred seventy million, two hundred fifty-five thousand, one hundred fifty-seven".