1216766405130 has 48 divisors (see below), whose sum is σ = 2949439645152. Its totient is φ = 321258376000.

The previous prime is 1216766405083. The next prime is 1216766405137. The reversal of 1216766405130 is 315046676121.

It is not an unprimeable number, because it can be changed into a prime (1216766405137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1681956 + ... + 2294015.

It is an arithmetic number, because the mean of its divisors is an integer number (61446659274).

Almost surely, 2^{1216766405130} is an apocalyptic number.

1216766405130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216766405130 is an abundant number, since it is smaller than the sum of its proper divisors (1732673240022).

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

1216766405130 is a wasteful number, since it uses less digits than its factorization.

1216766405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976183 (or 3976082 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 1216766405130 in words is "one trillion, two hundred sixteen billion, seven hundred sixty-six million, four hundred five thousand, one hundred thirty".