29990314661 has 2 divisors, whose sum is σ = 29990314662. Its totient is φ = 29990314660.

The previous prime is 29990314637. The next prime is 29990314663. The reversal of 29990314661 is 16641309992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17844952225 + 12145362436 = 133585^2 + 110206^2 .

It is a cyclic number.

It is not a de Polignac number, because 29990314661 - 2¹⁰ = 29990313637 is a prime.

Together with 29990314663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29990314663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14995157330 + 14995157331.

It is an arithmetic number, because the mean of its divisors is an integer number (14995157331).

Almost surely, 2^29990314661 is an apocalyptic number.

It is an amenable number.

29990314661 is a deficient number, since it is larger than the sum of its proper divisors (1).

29990314661 is an equidigital number, since it uses as much as digits as its factorization.

29990314661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 29990314661 in words is "twenty-nine billion, nine hundred ninety million, three hundred fourteen thousand, six hundred sixty-one".