16611652231 has 8 divisors (see below), whose sum is σ = 16805936160. Its totient is φ = 16418003232.

The previous prime is 16611652229. The next prime is 16611652261. The reversal of 16611652231 is 13225611661.

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

It is a cyclic number.

It is not a de Polignac number, because 16611652231 - 2¹ = 16611652229 is a prime.

It is a super-2 number, since 2×16611652231² (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 (16611652261) 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, 106000 + ... + 210853.

It is an arithmetic number, because the mean of its divisors is an integer number (2100742020).

Almost surely, 2^16611652231 is an apocalyptic number.

16611652231 is a deficient number, since it is larger than the sum of its proper divisors (194283929).

16611652231 is a wasteful number, since it uses less digits than its factorization.

16611652231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317465.

The product of its digits is 12960, while the sum is 34.

The spelling of 16611652231 in words is "sixteen billion, six hundred eleven million, six hundred fifty-two thousand, two hundred thirty-one".