16451367377645 has 16 divisors (see below), whose sum is σ = 20201470483392. Its totient is φ = 12854562685440.

The previous prime is 16451367377623. The next prime is 16451367377647. The reversal of 16451367377645 is 54677376315461.

It is not a de Polignac number, because 16451367377645 - 2⁶ = 16451367377581 is a prime.

It is a super-3 number, since 3×16451367377645³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16451367377647) 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, 4728125 + ... + 7433565.

It is an arithmetic number, because the mean of its divisors is an integer number (1262591905212).

Almost surely, 2^{16451367377645} is an apocalyptic number.

It is an amenable number.

16451367377645 is a deficient number, since it is larger than the sum of its proper divisors (3750103105747).

16451367377645 is a wasteful number, since it uses less digits than its factorization.

16451367377645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733772.

The product of its digits is 266716800, while the sum is 65.

The spelling of 16451367377645 in words is "sixteen trillion, four hundred fifty-one billion, three hundred sixty-seven million, three hundred seventy-seven thousand, six hundred forty-five".