1166820664150 has 24 divisors (see below), whose sum is σ = 2171110944024. Its totient is φ = 466550952000.

The previous prime is 1166820664123. The next prime is 1166820664159. The reversal of 1166820664150 is 514660286611.

It is a super-2 number, since 2×1166820664150² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1166820664150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166820664159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4299876 + ... + 4563175.

It is an arithmetic number, because the mean of its divisors is an integer number (90462956001).

Almost surely, 2^{1166820664150} is an apocalyptic number.

1166820664150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166820664150 is a deficient number, since it is larger than the sum of its proper divisors (1004290279874).

1166820664150 is a wasteful number, since it uses less digits than its factorization.

1166820664150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865696 (or 8865691 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 1166820664150 in words is "one trillion, one hundred sixty-six billion, eight hundred twenty million, six hundred sixty-four thousand, one hundred fifty".