16423640177 has 32 divisors (see below), whose sum is σ = 20049120000. Its totient is φ = 13132965888.

The previous prime is 16423640137. The next prime is 16423640201. The reversal of 16423640177 is 77104632461.

It is not a de Polignac number, because 16423640177 - 2⁶ = 16423640113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16423640137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15655949 + ... + 15656997.

It is an arithmetic number, because the mean of its divisors is an integer number (626535000).

Almost surely, 2^16423640177 is an apocalyptic number.

16423640177 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16423640177 is a deficient number, since it is larger than the sum of its proper divisors (3625479823).

16423640177 is a wasteful number, since it uses less digits than its factorization.

16423640177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 16423640177 in words is "sixteen billion, four hundred twenty-three million, six hundred forty thousand, one hundred seventy-seven".