16123437465 has 32 divisors (see below), whose sum is σ = 25971708672. Its totient is φ = 8541216000.

The previous prime is 16123437439. The next prime is 16123437479. The reversal of 16123437465 is 56473432161.

It is not a de Polignac number, because 16123437465 - 2⁵ = 16123437433 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2551660 + ... + 2557970.

It is an arithmetic number, because the mean of its divisors is an integer number (811615896).

Almost surely, 2^16123437465 is an apocalyptic number.

16123437465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16123437465 is a deficient number, since it is larger than the sum of its proper divisors (9848271207).

16123437465 is a wasteful number, since it uses less digits than its factorization.

16123437465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441.

The product of its digits is 362880, while the sum is 42.

The spelling of 16123437465 in words is "sixteen billion, one hundred twenty-three million, four hundred thirty-seven thousand, four hundred sixty-five".