32272157520 has 60 divisors (see below), whose sum is σ = 108380664756. Its totient is φ = 8605908480.

The previous prime is 32272157483. The next prime is 32272157527. The reversal of 32272157520 is 2575127223.

It can be written as a sum of positive squares in 2 ways, for example, as 9508590144 + 22763567376 = 97512^2 + 150876^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32272157527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22410501 + ... + 22411940.

Almost surely, 2^32272157520 is an apocalyptic number.

32272157520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32272157520 is an abundant number, since it is smaller than the sum of its proper divisors (76108507236).

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

32272157520 is a wasteful number, since it uses less digits than its factorization.

32272157520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822460 (or 44822451 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 32272157520 in words is "thirty-two billion, two hundred seventy-two million, one hundred fifty-seven thousand, five hundred twenty".