3666254265812 has 12 divisors (see below), whose sum is σ = 6793353492660. Its totient is φ = 1725296125056.

The previous prime is 3666254265811. The next prime is 3666254265823. The reversal of 3666254265812 is 2185624526663.

It can be written as a sum of positive squares in 2 ways, for example, as 2782270704196 + 883983561616 = 1668014^2 + 940204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666254265811) 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, 26957751887 + ... + 26957752022.

It is an arithmetic number, because the mean of its divisors is an integer number (566112791055).

Almost surely, 2^{3666254265812} is an apocalyptic number.

It is an amenable number.

3666254265812 is a deficient number, since it is larger than the sum of its proper divisors (3127099226848).

3666254265812 is a wasteful number, since it uses less digits than its factorization.

3666254265812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53915503930 (or 53915503928 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 56.

The spelling of 3666254265812 in words is "three trillion, six hundred sixty-six billion, two hundred fifty-four million, two hundred sixty-five thousand, eight hundred twelve".