670156051 has 2 divisors, whose sum is σ = 670156052. Its totient is φ = 670156050.

The previous prime is 670156021. The next prime is 670156079. The reversal of 670156051 is 150651076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670156051 - 2⁹ = 670155539 is a prime.

It is not a weakly prime, because it can be changed into another prime (670156001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335078025 + 335078026.

It is an arithmetic number, because the mean of its divisors is an integer number (335078026).

Almost surely, 2^670156051 is an apocalyptic number.

670156051 is a deficient number, since it is larger than the sum of its proper divisors (1).

670156051 is an equidigital number, since it uses as much as digits as its factorization.

670156051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 670156051 is about 25887.3724236354. The cubic root of 670156051 is about 875.1019422996.

The spelling of 670156051 in words is "six hundred seventy million, one hundred fifty-six thousand, fifty-one".