1216459900096 has 56 divisors (see below), whose sum is σ = 2762832936096. Its totient is φ = 520569753600.

The previous prime is 1216459900039. The next prime is 1216459900231. The reversal of 1216459900096 is 6900099546121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702105 + ... + 2308696.

Almost surely, 2^{1216459900096} is an apocalyptic number.

1216459900096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1216459900096 is an abundant number, since it is smaller than the sum of its proper divisors (1546373036000).

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

1216459900096 is an equidigital number, since it uses as much as digits as its factorization.

1216459900096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011497 (or 4011487 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 1216459900096 in words is "one trillion, two hundred sixteen billion, four hundred fifty-nine million, nine hundred thousand, ninety-six".