16165632000 has 768 divisors, whose sum is σ = 64106864640. Its totient is φ = 3538944000.

The previous prime is 16165631981. The next prime is 16165632037. The reversal of 16165632000 is 23656161.

It is a tau number, because it is divible by the number of its divisors (768).

It is a super-2 number, since 2×16165632000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166655952 + ... + 166656048.

It is an arithmetic number, because the mean of its divisors is an integer number (83472480).

Almost surely, 2^16165632000 is an apocalyptic number.

16165632000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16165632000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32053432320).

16165632000 is an abundant number, since it is smaller than the sum of its proper divisors (47941232640).

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

16165632000 is an equidigital number, since it uses as much as digits as its factorization.

16165632000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 16165632000 in words is "sixteen billion, one hundred sixty-five million, six hundred thirty-two thousand".