39606656880465 has 128 divisors (see below), whose sum is σ = 71242827264000. Its totient is φ = 20876087232000.

The previous prime is 39606656880407. The next prime is 39606656880473. The reversal of 39606656880465 is 56408865660693.

It is a happy number.

39606656880465 is a `hidden beast` number, since 3 + 9 + 606 + 6 + 5 + 6 + 8 + 8 + 0 + 4 + 6 + 5 = 666.

It is not a de Polignac number, because 39606656880465 - 2¹¹ = 39606656878417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39606656880393 and 39606656880402.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2953289610 + ... + 2953303020.

It is an arithmetic number, because the mean of its divisors is an integer number (556584588000).

Almost surely, 2^{39606656880465} is an apocalyptic number.

It is an amenable number.

39606656880465 is a deficient number, since it is larger than the sum of its proper divisors (31636170383535).

39606656880465 is a wasteful number, since it uses less digits than its factorization.

39606656880465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356 (or 14350 counting only the distinct ones).

The product of its (nonzero) digits is 1343692800, while the sum is 72.

The spelling of 39606656880465 in words is "thirty-nine trillion, six hundred six billion, six hundred fifty-six million, eight hundred eighty thousand, four hundred sixty-five".