16311506340 has 48 divisors (see below), whose sum is σ = 45794726208. Its totient is φ = 4338067584.

The previous prime is 16311506329. The next prime is 16311506347. The reversal of 16311506340 is 4360511361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16311506298 and 16311506307.

It is not an unprimeable number, because it can be changed into a prime (16311506347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 342042 + ... + 386801.

It is an arithmetic number, because the mean of its divisors is an integer number (954056796).

Almost surely, 2^16311506340 is an apocalyptic number.

16311506340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16311506340 is an abundant number, since it is smaller than the sum of its proper divisors (29483219868).

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

16311506340 is a wasteful number, since it uses less digits than its factorization.

16311506340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729228 (or 729226 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 16311506340 in words is "sixteen billion, three hundred eleven million, five hundred six thousand, three hundred forty".