32153423720 has 128 divisors (see below), whose sum is σ = 81068359680. Its totient is φ = 11376288000.

The previous prime is 32153423719. The next prime is 32153423737. The reversal of 32153423720 is 2732435123.

It is a happy number.

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, 5124185 + ... + 5130455.

It is an arithmetic number, because the mean of its divisors is an integer number (633346560).

Almost surely, 2^32153423720 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 32153423720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40534179840).

32153423720 is an abundant number, since it is smaller than the sum of its proper divisors (48914935960).

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

32153423720 is a wasteful number, since it uses less digits than its factorization.

32153423720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607 (or 6603 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 32153423720 its reverse (2732435123), we get a palindrome (34885858843).

The spelling of 32153423720 in words is "thirty-two billion, one hundred fifty-three million, four hundred twenty-three thousand, seven hundred twenty".