39916656701 has 2 divisors, whose sum is σ = 39916656702. Its totient is φ = 39916656700.

The previous prime is 39916656671. The next prime is 39916656709. The reversal of 39916656701 is 10765661993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30175164100 + 9741492601 = 173710^2 + 98699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39916656701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39916656709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19958328350 + 19958328351.

It is an arithmetic number, because the mean of its divisors is an integer number (19958328351).

Almost surely, 2^39916656701 is an apocalyptic number.

It is an amenable number.

39916656701 is a deficient number, since it is larger than the sum of its proper divisors (1).

39916656701 is an equidigital number, since it uses as much as digits as its factorization.

39916656701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 39916656701 in words is "thirty-nine billion, nine hundred sixteen million, six hundred fifty-six thousand, seven hundred one".