16311909900 has 144 divisors (see below), whose sum is σ = 55446951168. Its totient is φ = 3650208000.

The previous prime is 16311909883. The next prime is 16311909917. The reversal of 16311909900 is 990911361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16311909883) and next prime (16311909917).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147216 + ... + 233015.

It is an arithmetic number, because the mean of its divisors is an integer number (385048272).

Almost surely, 2^16311909900 is an apocalyptic number.

16311909900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16311909900 is an abundant number, since it is smaller than the sum of its proper divisors (39135041268).

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

16311909900 is a wasteful number, since it uses less digits than its factorization.

16311909900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380272 (or 380265 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 39.

The spelling of 16311909900 in words is "sixteen billion, three hundred eleven million, nine hundred nine thousand, nine hundred".