16147706021 has 8 divisors (see below), whose sum is σ = 17093002080. Its totient is φ = 15228308592.

The previous prime is 16147706017. The next prime is 16147706023. The reversal of 16147706021 is 12060774161.

It is a happy number.

16147706021 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 not a de Polignac number, because 16147706021 - 2² = 16147706017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16147706023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6473375 + ... + 6475868.

It is an arithmetic number, because the mean of its divisors is an integer number (2136625260).

Almost surely, 2^16147706021 is an apocalyptic number.

It is an amenable number.

16147706021 is a deficient number, since it is larger than the sum of its proper divisors (945296059).

16147706021 is a wasteful number, since it uses less digits than its factorization.

16147706021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949315.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 16147706021 in words is "sixteen billion, one hundred forty-seven million, seven hundred six thousand, twenty-one".