32266220840 has 128 divisors (see below), whose sum is σ = 85153835520. Its totient is φ = 10775116800.

The previous prime is 32266220809. The next prime is 32266220873. The reversal of 32266220840 is 4802266223.

It is a super-2 number, since 2×32266220840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 32266220840.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1750070 + ... + 1768410.

It is an arithmetic number, because the mean of its divisors is an integer number (665264340).

Almost surely, 2^32266220840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32266220840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42576917760).

32266220840 is an abundant number, since it is smaller than the sum of its proper divisors (52887614680).

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

32266220840 is a wasteful number, since it uses less digits than its factorization.

32266220840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18523 (or 18519 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 32266220840 in words is "thirty-two billion, two hundred sixty-six million, two hundred twenty thousand, eight hundred forty".