20201332572 has 36 divisors (see below), whose sum is σ = 51073123920. Its totient is φ = 6732637632.

The previous prime is 20201332519. The next prime is 20201332573. The reversal of 20201332572 is 27523310202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201332573) 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, 183513 + ... + 272175.

Almost surely, 2^20201332572 is an apocalyptic number.

It is an amenable number.

20201332572 is an abundant number, since it is smaller than the sum of its proper divisors (30871791348).

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

20201332572 is a wasteful number, since it uses less digits than its factorization.

20201332572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95002 (or 94997 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 20201332572 its reverse (27523310202), we get a palindrome (47724642774).

The spelling of 20201332572 in words is "twenty billion, two hundred one million, three hundred thirty-two thousand, five hundred seventy-two".