39902695966 has 12 divisors (see below), whose sum is σ = 69626132928. Its totient is φ = 17101155372.

The previous prime is 39902695961. The next prime is 39902695969. The reversal of 39902695966 is 66959620993.

It is a junction number, because it is equal to n+sod(n) for n = 39902695898 and 39902695907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39902695961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203585086 + ... + 203585281.

It is an arithmetic number, because the mean of its divisors is an integer number (5802177744).

Almost surely, 2^39902695966 is an apocalyptic number.

39902695966 is a deficient number, since it is larger than the sum of its proper divisors (29723436962).

39902695966 is a wasteful number, since it uses less digits than its factorization.

39902695966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407170383 (or 407170376 counting only the distinct ones).

The product of its (nonzero) digits is 42515280, while the sum is 64.

The spelling of 39902695966 in words is "thirty-nine billion, nine hundred two million, six hundred ninety-five thousand, nine hundred sixty-six".