18066377160 has 576 divisors, whose sum is σ = 68035593600. Its totient is φ = 4261870080.

The previous prime is 18066377149. The next prime is 18066377171. The reversal of 18066377160 is 6177366081.

18066377160 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 637 + 7 + 1 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (18066377149) and next prime (18066377171).

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 143 ways as a sum of consecutive naturals, for example, 175401669 + ... + 175401771.

It is an arithmetic number, because the mean of its divisors is an integer number (118117350).

Almost surely, 2^18066377160 is an apocalyptic number.

18066377160 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 18066377160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34017796800).

18066377160 is an abundant number, since it is smaller than the sum of its proper divisors (49969216440).

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

18066377160 is a wasteful number, since it uses less digits than its factorization.

18066377160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 18066377160 in words is "eighteen billion, sixty-six million, three hundred seventy-seven thousand, one hundred sixty".