16365455651 has 16 divisors (see below), whose sum is σ = 16611769920. Its totient is φ = 16121548800.

The previous prime is 16365455609. The next prime is 16365455749. The reversal of 16365455651 is 15655456361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16365455651 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16365455596 and 16365455605.

It is not an unprimeable number, because it can be changed into a prime (16365455251) 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, 11918801 + ... + 11920173.

It is an arithmetic number, because the mean of its divisors is an integer number (1038235620).

Almost surely, 2^16365455651 is an apocalyptic number.

16365455651 is a deficient number, since it is larger than the sum of its proper divisors (246314269).

16365455651 is a wasteful number, since it uses less digits than its factorization.

16365455651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126.

The product of its digits is 1620000, while the sum is 47.

The spelling of 16365455651 in words is "sixteen billion, three hundred sixty-five million, four hundred fifty-five thousand, six hundred fifty-one".