16164973973 has 8 divisors (see below), whose sum is σ = 16228128000. Its totient is φ = 16101916848.

The previous prime is 16164973949. The next prime is 16164974041. The reversal of 16164973973 is 37937946161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16164973973 - 2¹⁰ = 16164972949 is a prime.

It is a super-2 number, since 2×16164973973² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16164973373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319508 + ... + 366626.

It is an arithmetic number, because the mean of its divisors is an integer number (2028516000).

Almost surely, 2^16164973973 is an apocalyptic number.

It is an amenable number.

16164973973 is a deficient number, since it is larger than the sum of its proper divisors (63154027).

16164973973 is an equidigital number, since it uses as much as digits as its factorization.

16164973973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48451.

The product of its digits is 5143824, while the sum is 56.

The spelling of 16164973973 in words is "sixteen billion, one hundred sixty-four million, nine hundred seventy-three thousand, nine hundred seventy-three".