32700409056 has 144 divisors (see below), whose sum is σ = 107557317504. Its totient is φ = 9230360832.

The previous prime is 32700408989. The next prime is 32700409067. The reversal of 32700409056 is 65090400723.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×32700409056² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 32700409056.

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, 69615 + ... + 265041.

It is an arithmetic number, because the mean of its divisors is an integer number (746925816).

Almost surely, 2^32700409056 is an apocalyptic number.

32700409056 is a gapful number since it is divisible by the number (36) 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 32700409056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53778658752).

32700409056 is an abundant number, since it is smaller than the sum of its proper divisors (74856908448).

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

32700409056 is a wasteful number, since it uses less digits than its factorization.

32700409056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195533 (or 195522 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 32700409056 its reverse (65090400723), we get a palindrome (97790809779).

The spelling of 32700409056 in words is "thirty-two billion, seven hundred million, four hundred nine thousand, fifty-six".