16379229621 has 8 divisors (see below), whose sum is σ = 22196989024. Its totient is φ = 10740478320.

The previous prime is 16379229619. The next prime is 16379229673. The reversal of 16379229621 is 12692297361.

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

It is not a de Polignac number, because 16379229621 - 2¹ = 16379229619 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16379229521) 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, 44751811 + ... + 44752176.

It is an arithmetic number, because the mean of its divisors is an integer number (2774623628).

Almost surely, 2^16379229621 is an apocalyptic number.

It is an amenable number.

16379229621 is a deficient number, since it is larger than the sum of its proper divisors (5817759403).

16379229621 is an equidigital number, since it uses as much as digits as its factorization.

16379229621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89504051.

The product of its digits is 489888, while the sum is 48.

The spelling of 16379229621 in words is "sixteen billion, three hundred seventy-nine million, two hundred twenty-nine thousand, six hundred twenty-one".