16246521621311 has 4 divisors (see below), whose sum is σ = 16489007018712. Its totient is φ = 16004036223912.

The previous prime is 16246521621199. The next prime is 16246521621329. The reversal of 16246521621311 is 11312612564261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16246521621311 - 2⁴² = 11848475110207 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 (16246521621511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121242698600 + ... + 121242698733.

It is an arithmetic number, because the mean of its divisors is an integer number (4122251754678).

Almost surely, 2^{16246521621311} is an apocalyptic number.

16246521621311 is a deficient number, since it is larger than the sum of its proper divisors (242485397401).

16246521621311 is an equidigital number, since it uses as much as digits as its factorization.

16246521621311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242485397400.

The product of its digits is 103680, while the sum is 41.

The spelling of 16246521621311 in words is "sixteen trillion, two hundred forty-six billion, five hundred twenty-one million, six hundred twenty-one thousand, three hundred eleven".