16621924059953 has 8 divisors (see below), whose sum is σ = 16664482979520. Its totient is φ = 16579379723760.

The previous prime is 16621924059947. The next prime is 16621924060013. The reversal of 16621924059953 is 35995042912661.

16621924059953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16621924059953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16621924559953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361525 + ... + 5924322.

It is an arithmetic number, because the mean of its divisors is an integer number (2083060372440).

Almost surely, 2^{16621924059953} is an apocalyptic number.

It is an amenable number.

16621924059953 is a deficient number, since it is larger than the sum of its proper divisors (42558919567).

16621924059953 is an equidigital number, since it uses as much as digits as its factorization.

16621924059953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291687.

The product of its (nonzero) digits is 31492800, while the sum is 62.

The spelling of 16621924059953 in words is "sixteen trillion, six hundred twenty-one billion, nine hundred twenty-four million, fifty-nine thousand, nine hundred fifty-three".