16626453120 has 512 divisors, whose sum is σ = 62791200000. Its totient is φ = 4145872896.

The previous prime is 16626453091. The next prime is 16626453121. The reversal of 16626453120 is 2135462661.

16626453120 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 645 + 3 + 1 + 2 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (16626453121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29220196 + ... + 29220764.

Almost surely, 2^16626453120 is an apocalyptic number.

16626453120 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 16626453120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31395600000).

16626453120 is an abundant number, since it is smaller than the sum of its proper divisors (46164746880).

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

16626453120 is a wasteful number, since it uses less digits than its factorization.

16626453120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 16626453120 in words is "sixteen billion, six hundred twenty-six million, four hundred fifty-three thousand, one hundred twenty".