16623620408750 has 40 divisors (see below), whose sum is σ = 31822278336288. Its totient is φ = 6507970520000.

The previous prime is 16623620408749. The next prime is 16623620408819. The reversal of 16623620408750 is 5780402632661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141418871 + ... + 141536370.

Almost surely, 2^{16623620408750} is an apocalyptic number.

16623620408750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16623620408750 is a deficient number, since it is larger than the sum of its proper divisors (15198657927538).

16623620408750 is an equidigital number, since it uses as much as digits as its factorization.

16623620408750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282955310 (or 282955295 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 16623620408750 in words is "sixteen trillion, six hundred twenty-three billion, six hundred twenty million, four hundred eight thousand, seven hundred fifty".