1166601055590 has 48 divisors (see below), whose sum is σ = 3034135331136. Its totient is φ = 310993862400.

The previous prime is 1166601055589. The next prime is 1166601055681. The reversal of 1166601055590 is 955501066611.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795726 + ... + 2357505.

It is an arithmetic number, because the mean of its divisors is an integer number (63211152732).

Almost surely, 2^{1166601055590} is an apocalyptic number.

1166601055590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166601055590 is an abundant number, since it is smaller than the sum of its proper divisors (1867534275546).

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

1166601055590 is a wasteful number, since it uses less digits than its factorization.

1166601055590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156365 (or 4156362 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 1166601055590 in words is "one trillion, one hundred sixty-six billion, six hundred one million, fifty-five thousand, five hundred ninety".