1150646986566 has 512 divisors, whose sum is σ = 3439853568000. Its totient is φ = 276087657600.

The previous prime is 1150646986549. The next prime is 1150646986579. The reversal of 1150646986566 is 6656896460511.

1150646986566 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 6 + 4 + 69 + 8 + 6 + 566 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1600343155 + ... + 1600343873.

It is an arithmetic number, because the mean of its divisors is an integer number (6718464000).

Almost surely, 2^{1150646986566} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150646986566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1719926784000).

1150646986566 is an abundant number, since it is smaller than the sum of its proper divisors (2289206581434).

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

1150646986566 is a wasteful number, since it uses less digits than its factorization.

1150646986566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 1150646986566 in words is "one trillion, one hundred fifty billion, six hundred forty-six million, nine hundred eighty-six thousand, five hundred sixty-six".