16291161500 has 24 divisors (see below), whose sum is σ = 35579897808. Its totient is φ = 6516464400.

The previous prime is 16291161461. The next prime is 16291161517. The reversal of 16291161500 is 516119261.

It is a congruent number.

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, 16290662 + ... + 16291661.

It is an arithmetic number, because the mean of its divisors is an integer number (1482495742).

Almost surely, 2^16291161500 is an apocalyptic number.

16291161500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16291161500 is an abundant number, since it is smaller than the sum of its proper divisors (19288736308).

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

16291161500 is a wasteful number, since it uses less digits than its factorization.

16291161500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582342 (or 32582330 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 16291161500 in words is "sixteen billion, two hundred ninety-one million, one hundred sixty-one thousand, five hundred".