16135449717723 has 16 divisors (see below), whose sum is σ = 24990423296256. Its totient is φ = 9069105227040.

The previous prime is 16135449717707. The next prime is 16135449717757. The reversal of 16135449717723 is 32771794453161.

It is not a de Polignac number, because 16135449717723 - 2⁴ = 16135449717707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16135449717773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6297988461 + ... + 6297991022.

It is an arithmetic number, because the mean of its divisors is an integer number (1561901456016).

Almost surely, 2^{16135449717723} is an apocalyptic number.

16135449717723 is a deficient number, since it is larger than the sum of its proper divisors (8854973578533).

16135449717723 is a wasteful number, since it uses less digits than its factorization.

16135449717723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12595979554.

The product of its digits is 26671680, while the sum is 60.

The spelling of 16135449717723 in words is "sixteen trillion, one hundred thirty-five billion, four hundred forty-nine million, seven hundred seventeen thousand, seven hundred twenty-three".