16886754021 has 8 divisors (see below), whose sum is σ = 22677655840. Its totient is φ = 11176844112.

The previous prime is 16886753999. The next prime is 16886754023. The reversal of 16886754021 is 12045768861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16886754021 - 2⁶ = 16886753957 is a prime.

It is a super-2 number, since 2×16886754021² (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 (16886754023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20247490 + ... + 20248323.

It is an arithmetic number, because the mean of its divisors is an integer number (2834706980).

Almost surely, 2^16886754021 is an apocalyptic number.

It is an amenable number.

16886754021 is a deficient number, since it is larger than the sum of its proper divisors (5790901819).

16886754021 is a wasteful number, since it uses less digits than its factorization.

16886754021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40495955.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 16886754021 in words is "sixteen billion, eight hundred eighty-six million, seven hundred fifty-four thousand, twenty-one".