16326140421 has 16 divisors (see below), whose sum is σ = 22741125120. Its totient is φ = 10406085360.

The previous prime is 16326140401. The next prime is 16326140459. The reversal of 16326140421 is 12404162361.

It is not a de Polignac number, because 16326140421 - 2⁷ = 16326140293 is a prime.

It is a super-2 number, since 2×16326140421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16326140401) 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, 1049811 + ... + 1065248.

It is an arithmetic number, because the mean of its divisors is an integer number (1421320320).

Almost surely, 2^16326140421 is an apocalyptic number.

It is an amenable number.

16326140421 is a deficient number, since it is larger than the sum of its proper divisors (6414984699).

16326140421 is a wasteful number, since it uses less digits than its factorization.

16326140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115176.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 16326140421 in words is "sixteen billion, three hundred twenty-six million, one hundred forty thousand, four hundred twenty-one".