29516664997 has 2 divisors, whose sum is σ = 29516664998. Its totient is φ = 29516664996.

The previous prime is 29516664949. The next prime is 29516665033. The reversal of 29516664997 is 79946661592.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15573542436 + 13943122561 = 124794^2 + 118081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29516664997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29516664917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14758332498 + 14758332499.

It is an arithmetic number, because the mean of its divisors is an integer number (14758332499).

Almost surely, 2^29516664997 is an apocalyptic number.

It is an amenable number.

29516664997 is a deficient number, since it is larger than the sum of its proper divisors (1).

29516664997 is an equidigital number, since it uses as much as digits as its factorization.

29516664997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 64.

The spelling of 29516664997 in words is "twenty-nine billion, five hundred sixteen million, six hundred sixty-four thousand, nine hundred ninety-seven".