32166051840 has 408 divisors, whose sum is σ = 120228806880. Its totient is φ = 7908360192.

The previous prime is 32166051817. The next prime is 32166051859. The reversal of 32166051840 is 4815066123.

It is a happy number.

32166051840 is a `hidden beast` number, since 3 + 2 + 1 + 6 + 605 + 1 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 32166051795 and 32166051804.

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, 38338141 + ... + 38338979.

Almost surely, 2^32166051840 is an apocalyptic number.

32166051840 is a gapful number since it is divisible by the number (30) 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 32166051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60114403440).

32166051840 is an abundant number, since it is smaller than the sum of its proper divisors (88062755040).

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

32166051840 is an equidigital number, since it uses as much as digits as its factorization.

32166051840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 32166051840 in words is "thirty-two billion, one hundred sixty-six million, fifty-one thousand, eight hundred forty".