16465144505 has 16 divisors (see below), whose sum is σ = 20012227200. Its totient is φ = 13003001088.

The previous prime is 16465144499. The next prime is 16465144511. The reversal of 16465144505 is 50544156461.

It is an interprime number because it is at equal distance from previous prime (16465144499) and next prime (16465144511).

It is a cyclic number.

It is not a de Polignac number, because 16465144505 - 2⁶ = 16465144441 is a prime.

It is a super-2 number, since 2×16465144505² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525521 + ... + 555969.

It is an arithmetic number, because the mean of its divisors is an integer number (1250764200).

Almost surely, 2^16465144505 is an apocalyptic number.

It is an amenable number.

16465144505 is a deficient number, since it is larger than the sum of its proper divisors (3547082695).

16465144505 is a wasteful number, since it uses less digits than its factorization.

16465144505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31840.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 16465144505 in words is "sixteen billion, four hundred sixty-five million, one hundred forty-four thousand, five hundred five".