2605402016612 has 12 divisors (see below), whose sum is σ = 4559754133116. Its totient is φ = 1302615121440.

The previous prime is 2605402016587. The next prime is 2605402016617. The reversal of 2605402016612 is 2166102045062.

It can be written as a sum of positive squares in 2 ways, for example, as 1516188344896 + 1089213671716 = 1231336^2 + 1043654^2 .

It is not an unprimeable number, because it can be changed into a prime (2605402016617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21403439 + ... + 21524822.

It is an arithmetic number, because the mean of its divisors is an integer number (379979511093).

Almost surely, 2^{2605402016612} is an apocalyptic number.

It is an amenable number.

2605402016612 is a deficient number, since it is larger than the sum of its proper divisors (1954352116504).

2605402016612 is a wasteful number, since it uses less digits than its factorization.

2605402016612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42943438 (or 42943436 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 2605402016612 in words is "two trillion, six hundred five billion, four hundred two million, sixteen thousand, six hundred twelve".