12455416240 has 40 divisors (see below), whose sum is σ = 29665163808. Its totient is φ = 4860648960.

The previous prime is 12455416201. The next prime is 12455416243. The reversal of 12455416240 is 4261455421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12455416196 and 12455416205.

It is not an unprimeable number, because it can be changed into a prime (12455416243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1895412 + ... + 1901971.

Almost surely, 2^12455416240 is an apocalyptic number.

12455416240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12455416240 is an abundant number, since it is smaller than the sum of its proper divisors (17209747568).

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

12455416240 is a wasteful number, since it uses less digits than its factorization.

12455416240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797437 (or 3797431 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 12455416240 in words is "twelve billion, four hundred fifty-five million, four hundred sixteen thousand, two hundred forty".