16933455631 has 4 divisors (see below), whose sum is σ = 17391116632. Its totient is φ = 16475794632.

The previous prime is 16933455587. The next prime is 16933455641. The reversal of 16933455631 is 13655433961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13655433961 = 13 ⋅1050417997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16933455631 is a prime.

It is a super-2 number, since 2×16933455631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16933455641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228830445 + ... + 228830518.

It is an arithmetic number, because the mean of its divisors is an integer number (4347779158).

Almost surely, 2^16933455631 is an apocalyptic number.

16933455631 is a deficient number, since it is larger than the sum of its proper divisors (457661001).

16933455631 is an equidigital number, since it uses as much as digits as its factorization.

16933455631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457661000.

The product of its digits is 874800, while the sum is 46.

The spelling of 16933455631 in words is "sixteen billion, nine hundred thirty-three million, four hundred fifty-five thousand, six hundred thirty-one".