16309231700 has 72 divisors (see below), whose sum is σ = 36659632800. Its totient is φ = 6290444160.

The previous prime is 16309231649. The next prime is 16309231777. The reversal of 16309231700 is 713290361.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2487827 + ... + 2494373.

Almost surely, 2^16309231700 is an apocalyptic number.

16309231700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16309231700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18329816400).

16309231700 is an abundant number, since it is smaller than the sum of its proper divisors (20350401100).

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

16309231700 is a wasteful number, since it uses less digits than its factorization.

16309231700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7449 (or 7442 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 16309231700 in words is "sixteen billion, three hundred nine million, two hundred thirty-one thousand, seven hundred".