16956233506 has 4 divisors (see below), whose sum is σ = 25434350262. Its totient is φ = 8478116752.

The previous prime is 16956233431. The next prime is 16956233509. The reversal of 16956233506 is 60533265961.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16387840225 + 568393281 = 128015^2 + 23841^2 .

It is not an unprimeable number, because it can be changed into a prime (16956233509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239058375 + ... + 4239058378.

Almost surely, 2^16956233506 is an apocalyptic number.

16956233506 is a deficient number, since it is larger than the sum of its proper divisors (8478116756).

16956233506 is an equidigital number, since it uses as much as digits as its factorization.

16956233506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478116755.

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

The spelling of 16956233506 in words is "sixteen billion, nine hundred fifty-six million, two hundred thirty-three thousand, five hundred six".