16621413132 has 12 divisors (see below), whose sum is σ = 38783297336. Its totient is φ = 5540471040.

The previous prime is 16621413101. The next prime is 16621413167. The reversal of 16621413132 is 23131412661.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a self number, because there is not a number n which added to its sum of digits gives 16621413132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692558869 + ... + 692558892.

Almost surely, 2^16621413132 is an apocalyptic number.

16621413132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16621413132 is an abundant number, since it is smaller than the sum of its proper divisors (22161884204).

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

16621413132 is a wasteful number, since it uses less digits than its factorization.

16621413132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385117768 (or 1385117766 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

Adding to 16621413132 its reverse (23131412661), we get a palindrome (39752825793).

The spelling of 16621413132 in words is "sixteen billion, six hundred twenty-one million, four hundred thirteen thousand, one hundred thirty-two".