2604166881 has 8 divisors (see below), whose sum is σ = 3623188800. Its totient is φ = 1660628112.

The previous prime is 2604166871. The next prime is 2604166883. The reversal of 2604166881 is 1886614062.

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

It is a de Polignac number, because none of the positive numbers 2^k-2604166881 is a prime.

It is a super-2 number, since 2×2604166881² = 13563370288194536322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2604166883) 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 in 7 ways as a sum of consecutive naturals, for example, 18870706 + ... + 18870843.

It is an arithmetic number, because the mean of its divisors is an integer number (452898600).

Almost surely, 2^2604166881 is an apocalyptic number.

It is an amenable number.

2604166881 is a deficient number, since it is larger than the sum of its proper divisors (1019021919).

2604166881 is a wasteful number, since it uses less digits than its factorization.

2604166881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741575.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 2604166881 is about 51031.0384080120. The cubic root of 2604166881 is about 1375.8030581175.

The spelling of 2604166881 in words is "two billion, six hundred four million, one hundred sixty-six thousand, eight hundred eighty-one".