39999666061052 has 12 divisors (see below), whose sum is σ = 70067310294576. Its totient is φ = 19980434548320.

The previous prime is 39999666061009. The next prime is 39999666061081. The reversal of 39999666061052 is 25016066699993.

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, 4849615913 + ... + 4849624160.

It is an arithmetic number, because the mean of its divisors is an integer number (5838942524548).

Almost surely, 2^{39999666061052} is an apocalyptic number.

It is an amenable number.

39999666061052 is a deficient number, since it is larger than the sum of its proper divisors (30067644233524).

39999666061052 is a wasteful number, since it uses less digits than its factorization.

39999666061052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699241108 (or 9699241106 counting only the distinct ones).

The product of its (nonzero) digits is 255091680, while the sum is 71.

The spelling of 39999666061052 in words is "thirty-nine trillion, nine hundred ninety-nine billion, six hundred sixty-six million, sixty-one thousand, fifty-two".