16921952733 has 16 divisors (see below), whose sum is σ = 26617634816. Its totient is φ = 9357761520.

The previous prime is 16921952699. The next prime is 16921952741. The reversal of 16921952733 is 33725912961.

It is not a de Polignac number, because 16921952733 - 2²⁴ = 16905175517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16921942733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12996241 + ... + 12997542.

It is an arithmetic number, because the mean of its divisors is an integer number (1663602176).

Almost surely, 2^16921952733 is an apocalyptic number.

It is an amenable number.

16921952733 is a deficient number, since it is larger than the sum of its proper divisors (9695682083).

16921952733 is a wasteful number, since it uses less digits than its factorization.

16921952733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25993824.

The product of its digits is 612360, while the sum is 48.

The spelling of 16921952733 in words is "sixteen billion, nine hundred twenty-one million, nine hundred fifty-two thousand, seven hundred thirty-three".