16772140611645 has 16 divisors (see below), whose sum is σ = 26835528531840. Its totient is φ = 8945107141824.

The previous prime is 16772140611617. The next prime is 16772140611647. The reversal of 16772140611645 is 54611604127761.

It is not a de Polignac number, because 16772140611645 - 2⁷ = 16772140611517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772140611647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134887 + ... + 6172683.

It is an arithmetic number, because the mean of its divisors is an integer number (1677220533240).

Almost surely, 2^{16772140611645} is an apocalyptic number.

16772140611645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16772140611645 is a deficient number, since it is larger than the sum of its proper divisors (10063387920195).

16772140611645 is a wasteful number, since it uses less digits than its factorization.

16772140611645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314724.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 16772140611645 in words is "sixteen trillion, seven hundred seventy-two billion, one hundred forty million, six hundred eleven thousand, six hundred forty-five".