2604312166 has 4 divisors (see below), whose sum is σ = 3906468252. Its totient is φ = 1302156082.

The previous prime is 2604312133. The next prime is 2604312167. The reversal of 2604312166 is 6612134062.

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

It is a super-2 number, since 2×2604312166² = 13564883715951223112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604312167) by changing a digit.

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 as a sum of consecutive naturals, namely, 651078040 + ... + 651078043.

It is an arithmetic number, because the mean of its divisors is an integer number (976617063).

Almost surely, 2^2604312166 is an apocalyptic number.

2604312166 is a deficient number, since it is larger than the sum of its proper divisors (1302156086).

2604312166 is a wasteful number, since it uses less digits than its factorization.

2604312166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302156085.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2604312166 is about 51032.4618845691. The cubic root of 2604312166 is about 1375.8286427336.

The spelling of 2604312166 in words is "two billion, six hundred four million, three hundred twelve thousand, one hundred sixty-six".