1164906205560 has 128 divisors (see below), whose sum is σ = 3884910336000. Its totient is φ = 310490483328.

The previous prime is 1164906205549. The next prime is 1164906205571. The reversal of 1164906205560 is 655026094611.

1164906205560 is a `hidden beast` number, since 1 + 1 + 6 + 4 + 90 + 6 + 2 + 0 + 556 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1164906205549) and next prime (1164906205571).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1966621 + ... + 2489459.

It is an arithmetic number, because the mean of its divisors is an integer number (30350862000).

Almost surely, 2^{1164906205560} is an apocalyptic number.

1164906205560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1164906205560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942455168000).

1164906205560 is an abundant number, since it is smaller than the sum of its proper divisors (2720004130440).

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

1164906205560 is a wasteful number, since it uses less digits than its factorization.

1164906205560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524922 (or 524912 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 1164906205560 in words is "one trillion, one hundred sixty-four billion, nine hundred six million, two hundred five thousand, five hundred sixty".