16330231651 has 4 divisors (see below), whose sum is σ = 16480050400. Its totient is φ = 16180412904.

The previous prime is 16330231649. The next prime is 16330231691. The reversal of 16330231651 is 15613203361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15613203361 = 7 ⋅2230457623.

It is a cyclic number.

It is not a de Polignac number, because 16330231651 - 2¹ = 16330231649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16330231691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74909211 + ... + 74909428.

It is an arithmetic number, because the mean of its divisors is an integer number (4120012600).

Almost surely, 2^16330231651 is an apocalyptic number.

16330231651 is a deficient number, since it is larger than the sum of its proper divisors (149818749).

16330231651 is a wasteful number, since it uses less digits than its factorization.

16330231651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149818748.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 16330231651 in words is "sixteen billion, three hundred thirty million, two hundred thirty-one thousand, six hundred fifty-one".