16465202645 has 16 divisors (see below), whose sum is σ = 19987152240. Its totient is φ = 13020134400.

The previous prime is 16465202617. The next prime is 16465202651. The reversal of 16465202645 is 54620256461.

It can be written as a sum of positive squares in 8 ways, for example, as 2444511364 + 14020691281 = 49442^2 + 118409^2 .

It is not a de Polignac number, because 16465202645 - 2⁶ = 16465202581 is a prime.

It is a super-2 number, since 2×16465202645² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193565 + ... + 265325.

It is an arithmetic number, because the mean of its divisors is an integer number (1249197015).

Almost surely, 2^16465202645 is an apocalyptic number.

It is an amenable number.

16465202645 is a deficient number, since it is larger than the sum of its proper divisors (3521949595).

16465202645 is a wasteful number, since it uses less digits than its factorization.

16465202645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72296.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 16465202645 in words is "sixteen billion, four hundred sixty-five million, two hundred two thousand, six hundred forty-five".