16673294400 has 168 divisors, whose sum is σ = 62517040320. Its totient is φ = 3811031040.

The previous prime is 16673294399. The next prime is 16673294453. The reversal of 16673294400 is 449237661.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×16673294400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214515 + ... + 281714.

It is an arithmetic number, because the mean of its divisors is an integer number (372125240).

Almost surely, 2^16673294400 is an apocalyptic number.

16673294400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16673294400 is an abundant number, since it is smaller than the sum of its proper divisors (45843745920).

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

16673294400 is a wasteful number, since it uses less digits than its factorization.

16673294400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496261 (or 496246 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 16673294400 in words is "sixteen billion, six hundred seventy-three million, two hundred ninety-four thousand, four hundred".