20372563632 has 160 divisors (see below), whose sum is σ = 57680308224. Its totient is φ = 6168268800.

The previous prime is 20372563543. The next prime is 20372563703. The reversal of 20372563632 is 23636527302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11660583 + ... + 11662329.

Almost surely, 2^20372563632 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 20372563632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28840154112).

20372563632 is an abundant number, since it is smaller than the sum of its proper divisors (37307744592).

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

20372563632 is a wasteful number, since it uses less digits than its factorization.

20372563632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 39.

The spelling of 20372563632 in words is "twenty billion, three hundred seventy-two million, five hundred sixty-three thousand, six hundred thirty-two".