16656028031 has 2 divisors, whose sum is σ = 16656028032. Its totient is φ = 16656028030.

The previous prime is 16656028021. The next prime is 16656028043. The reversal of 16656028031 is 13082065661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16656028031 - 2¹⁰ = 16656027007 is a prime.

It is a super-2 number, since 2×16656028031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16656028021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8328014015 + 8328014016.

It is an arithmetic number, because the mean of its divisors is an integer number (8328014016).

Almost surely, 2^16656028031 is an apocalyptic number.

16656028031 is a deficient number, since it is larger than the sum of its proper divisors (1).

16656028031 is an equidigital number, since it uses as much as digits as its factorization.

16656028031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 16656028031 in words is "sixteen billion, six hundred fifty-six million, twenty-eight thousand, thirty-one".