16423356165500 has 48 divisors (see below), whose sum is σ = 35869013762400. Its totient is φ = 6569268492800.

The previous prime is 16423356165481. The next prime is 16423356165539. The reversal of 16423356165500 is 556165332461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73958636 + ... + 74180364.

It is an arithmetic number, because the mean of its divisors is an integer number (747271120050).

Almost surely, 2^{16423356165500} is an apocalyptic number.

16423356165500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16423356165500 is an abundant number, since it is smaller than the sum of its proper divisors (19445657596900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16423356165500 is a wasteful number, since it uses less digits than its factorization.

16423356165500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369887 (or 369875 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 16423356165500 in words is "sixteen trillion, four hundred twenty-three billion, three hundred fifty-six million, one hundred sixty-five thousand, five hundred".