16646022677877 has 16 divisors (see below), whose sum is σ = 23728425252480. Its totient is φ = 10343159718912.

The previous prime is 16646022677873. The next prime is 16646022677891. The reversal of 16646022677877 is 77877622064661.

16646022677877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16646022677877 - 2² = 16646022677873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16646022677873) 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, 1584424852 + ... + 1584435357.

It is an arithmetic number, because the mean of its divisors is an integer number (1483026578280).

Almost surely, 2^{16646022677877} is an apocalyptic number.

16646022677877 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16646022677877 is a deficient number, since it is larger than the sum of its proper divisors (7082402574603).

16646022677877 is a wasteful number, since it uses less digits than its factorization.

16646022677877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168860332.

The product of its (nonzero) digits is 398297088, while the sum is 69.

The spelling of 16646022677877 in words is "sixteen trillion, six hundred forty-six billion, twenty-two million, six hundred seventy-seven thousand, eight hundred seventy-seven".