1166409278076 has 96 divisors (see below), whose sum is σ = 3274521832960. Its totient is φ = 315682147584.

The previous prime is 1166409278039. The next prime is 1166409278093. The reversal of 1166409278076 is 6708729046611.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14958726 + ... + 15036498.

Almost surely, 2^{1166409278076} is an apocalyptic number.

It is an amenable number.

1166409278076 is an abundant number, since it is smaller than the sum of its proper divisors (2108112554884).

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

1166409278076 is a wasteful number, since it uses less digits than its factorization.

1166409278076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87203 (or 87201 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 1166409278076 in words is "one trillion, one hundred sixty-six billion, four hundred nine million, two hundred seventy-eight thousand, seventy-six".