16423558675965 has 48 divisors (see below), whose sum is σ = 32651740138368. Its totient is φ = 7480808120448.

The previous prime is 16423558675961. The next prime is 16423558675987. The reversal of 16423558675965 is 56957685532461.

16423558675965 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 3 + 558 + 6 + 7 + 5 + 9 + 65 = 666.

It is not a de Polignac number, because 16423558675965 - 2² = 16423558675961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16423558675893 and 16423558675902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16423558675961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94025167 + ... + 94199676.

It is an arithmetic number, because the mean of its divisors is an integer number (680244586216).

Almost surely, 2^{16423558675965} is an apocalyptic number.

16423558675965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16423558675965 is a deficient number, since it is larger than the sum of its proper divisors (16228181462403).

16423558675965 is a wasteful number, since it uses less digits than its factorization.

16423558675965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188225138 (or 188225135 counting only the distinct ones).

The product of its digits is 1632960000, while the sum is 72.

The spelling of 16423558675965 in words is "sixteen trillion, four hundred twenty-three billion, five hundred fifty-eight million, six hundred seventy-five thousand, nine hundred sixty-five".