12316603440 has 80 divisors (see below), whose sum is σ = 38192743008. Its totient is φ = 3283458048.

The previous prime is 12316603433. The next prime is 12316603451. The reversal of 12316603440 is 4430661321.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 12316603398 and 12316603407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222102 + ... + 1232138.

Almost surely, 2^12316603440 is an apocalyptic number.

12316603440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12316603440 is an abundant number, since it is smaller than the sum of its proper divisors (25876139568).

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

12316603440 is a wasteful number, since it uses less digits than its factorization.

12316603440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166 (or 15160 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 12316603440 in words is "twelve billion, three hundred sixteen million, six hundred three thousand, four hundred forty".