40045666325 has 12 divisors (see below), whose sum is σ = 56750430240. Its totient is φ = 27459885360.

The previous prime is 40045666273. The next prime is 40045666343. The reversal of 40045666325 is 52366654004.

It is a happy number.

It is not a de Polignac number, because 40045666325 - 2¹⁶ = 40045600789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114416015 + ... + 114416364.

It is an arithmetic number, because the mean of its divisors is an integer number (4729202520).

Almost surely, 2^40045666325 is an apocalyptic number.

It is an amenable number.

40045666325 is a deficient number, since it is larger than the sum of its proper divisors (16704763915).

40045666325 is a wasteful number, since it uses less digits than its factorization.

40045666325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228832396 (or 228832391 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 40045666325 in words is "forty billion, forty-five million, six hundred sixty-six thousand, three hundred twenty-five".