40660215225 has 96 divisors (see below), whose sum is σ = 77800734720. Its totient is φ = 18353744640.

The previous prime is 40660215221. The next prime is 40660215263. The reversal of 40660215225 is 52251206604.

It is not a de Polignac number, because 40660215225 - 2² = 40660215221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40660215221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15267244 + ... + 15269906.

It is an arithmetic number, because the mean of its divisors is an integer number (810424320).

Almost surely, 2^40660215225 is an apocalyptic number.

It is an amenable number.

40660215225 is a deficient number, since it is larger than the sum of its proper divisors (37140519495).

40660215225 is a wasteful number, since it uses less digits than its factorization.

40660215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039 (or 3034 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 40660215225 in words is "forty billion, six hundred sixty million, two hundred fifteen thousand, two hundred twenty-five".