670811153 has 4 divisors (see below), whose sum is σ = 670989108. Its totient is φ = 670633200.

The previous prime is 670811107. The next prime is 670811171. The reversal of 670811153 is 351118076.

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

It can be written as a sum of positive squares in 2 ways, for example, as 512252689 + 158558464 = 22633^2 + 12592^2 .

It is a cyclic number.

It is not a de Polignac number, because 670811153 - 2¹⁴ = 670794769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (670811753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83198 + ... + 90903.

It is an arithmetic number, because the mean of its divisors is an integer number (167747277).

Almost surely, 2^670811153 is an apocalyptic number.

It is an amenable number.

670811153 is a deficient number, since it is larger than the sum of its proper divisors (177955).

670811153 is a wasteful number, since it uses less digits than its factorization.

670811153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177954.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 670811153 is about 25900.0222586777. The cubic root of 670811153 is about 875.3869974655.

The spelling of 670811153 in words is "six hundred seventy million, eight hundred eleven thousand, one hundred fifty-three".