16346421132 has 24 divisors (see below), whose sum is σ = 38158537536. Its totient is φ = 5446394448.

The previous prime is 16346421101. The next prime is 16346421199. The reversal of 16346421132 is 23112464361.

It is a happy number.

It is a super-2 number, since 2×16346421132² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16346421093 and 16346421102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273238 + ... + 327645.

It is an arithmetic number, because the mean of its divisors is an integer number (1589939064).

Almost surely, 2^16346421132 is an apocalyptic number.

16346421132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16346421132 is an abundant number, since it is smaller than the sum of its proper divisors (21812116404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16346421132 is a wasteful number, since it uses less digits than its factorization.

16346421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603157 (or 603155 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

Adding to 16346421132 its reverse (23112464361), we get a palindrome (39458885493).

The spelling of 16346421132 in words is "sixteen billion, three hundred forty-six million, four hundred twenty-one thousand, one hundred thirty-two".