612166623 has 8 divisors (see below), whose sum is σ = 818083200. Its totient is φ = 407180568.

The previous prime is 612166601. The next prime is 612166637. The reversal of 612166623 is 326661216.

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

It is not a de Polignac number, because 612166623 - 2⁶ = 612166559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612166663) 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, 231093 + ... + 233726.

It is an arithmetic number, because the mean of its divisors is an integer number (102260400).

Almost surely, 2^612166623 is an apocalyptic number.

612166623 is a deficient number, since it is larger than the sum of its proper divisors (205916577).

612166623 is a wasteful number, since it uses less digits than its factorization.

612166623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465261.

The product of its digits is 15552, while the sum is 33.

The square root of 612166623 is about 24742.0011923046. The cubic root of 612166623 is about 849.0955190871.

The spelling of 612166623 in words is "six hundred twelve million, one hundred sixty-six thousand, six hundred twenty-three".