16491195132 has 48 divisors (see below), whose sum is σ = 40305323520. Its totient is φ = 5238046528.

The previous prime is 16491195131. The next prime is 16491195157. The reversal of 16491195132 is 23159119461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16491195131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41007 + ... + 186182.

It is an arithmetic number, because the mean of its divisors is an integer number (839694240).

Almost surely, 2^16491195132 is an apocalyptic number.

16491195132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16491195132 is an abundant number, since it is smaller than the sum of its proper divisors (23814128388).

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

16491195132 is a wasteful number, since it uses less digits than its factorization.

16491195132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227482 (or 227480 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The spelling of 16491195132 in words is "sixteen billion, four hundred ninety-one million, one hundred ninety-five thousand, one hundred thirty-two".