16450161651 has 96 divisors (see below), whose sum is σ = 29954695680. Its totient is φ = 8450956800.

The previous prime is 16450161617. The next prime is 16450161709. The reversal of 16450161651 is 15616105461.

16450161651 is a `hidden beast` number, since 1 + 645 + 0 + 1 + 6 + 1 + 6 + 5 + 1 = 666.

It is not a de Polignac number, because 16450161651 - 2¹⁰ = 16450160627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16450161151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39260320 + ... + 39260738.

It is an arithmetic number, because the mean of its divisors is an integer number (312028080).

Almost surely, 2^16450161651 is an apocalyptic number.

16450161651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16450161651 is a deficient number, since it is larger than the sum of its proper divisors (13504534029).

16450161651 is a wasteful number, since it uses less digits than its factorization.

16450161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 16450161651 in words is "sixteen billion, four hundred fifty million, one hundred sixty-one thousand, six hundred fifty-one".