16364774400 has 528 divisors, whose sum is σ = 59956204224. Its totient is φ = 3910533120.

The previous prime is 16364774381. The next prime is 16364774401. The reversal of 16364774400 is 447746361.

It is not an unprimeable number, because it can be changed into a prime (16364774401) 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, 36940579 + ... + 36941021.

Almost surely, 2^16364774400 is an apocalyptic number.

16364774400 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 16364774400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29978102112).

16364774400 is an abundant number, since it is smaller than the sum of its proper divisors (43591429824).

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

16364774400 is a wasteful number, since it uses less digits than its factorization.

16364774400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 16364774400 in words is "sixteen billion, three hundred sixty-four million, seven hundred seventy-four thousand, four hundred".