40662385648 has 20 divisors (see below), whose sum is σ = 79191582208. Its totient is φ = 20225848320.

The previous prime is 40662385637. The next prime is 40662385669. The reversal of 40662385648 is 84658326604.

It is a junction number, because it is equal to n+sod(n) for n = 40662385595 and 40662385604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6580848 + ... + 6587023.

Almost surely, 2^40662385648 is an apocalyptic number.

It is an amenable number.

40662385648 is a deficient number, since it is larger than the sum of its proper divisors (38529196560).

40662385648 is a wasteful number, since it uses less digits than its factorization.

40662385648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13168072 (or 13168066 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 40662385648 in words is "forty billion, six hundred sixty-two million, three hundred eighty-five thousand, six hundred forty-eight".