16633066631 has 2 divisors, whose sum is σ = 16633066632. Its totient is φ = 16633066630.

The previous prime is 16633066627. The next prime is 16633066649. The reversal of 16633066631 is 13666033661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16633066631 - 2² = 16633066627 is a prime.

It is a super-2 number, since 2×16633066631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16633066651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8316533315 + 8316533316.

It is an arithmetic number, because the mean of its divisors is an integer number (8316533316).

Almost surely, 2^16633066631 is an apocalyptic number.

16633066631 is a deficient number, since it is larger than the sum of its proper divisors (1).

16633066631 is an equidigital number, since it uses as much as digits as its factorization.

16633066631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 41.

The spelling of 16633066631 in words is "sixteen billion, six hundred thirty-three million, sixty-six thousand, six hundred thirty-one".