16573423104 has 240 divisors, whose sum is σ = 55239151968. Its totient is φ = 4685561856.

The previous prime is 16573423103. The next prime is 16573423123. The reversal of 16573423104 is 40132437561.

16573423104 is a `hidden beast` number, since 1 + 65 + 73 + 423 + 104 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16573423103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3126184 + ... + 3131480.

Almost surely, 2^16573423104 is an apocalyptic number.

16573423104 is a gapful number since it is divisible by the number (14) 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 16573423104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27619575984).

16573423104 is an abundant number, since it is smaller than the sum of its proper divisors (38665728864).

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

16573423104 is an equidigital number, since it uses as much as digits as its factorization.

16573423104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425 (or 5406 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 16573423104 in words is "sixteen billion, five hundred seventy-three million, four hundred twenty-three thousand, one hundred four".