20632293988 has 12 divisors (see below), whose sum is σ = 36145055212. Its totient is φ = 10305135360.

The previous prime is 20632293943. The next prime is 20632293991. The reversal of 20632293988 is 88939223602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2902838884 + 17729455104 = 53878^2 + 133152^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2748693 + ... + 2756188.

Almost surely, 2^20632293988 is an apocalyptic number.

It is an amenable number.

20632293988 is a deficient number, since it is larger than the sum of its proper divisors (15512761224).

20632293988 is a wasteful number, since it uses less digits than its factorization.

20632293988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505822 (or 5505820 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 20632293988 in words is "twenty billion, six hundred thirty-two million, two hundred ninety-three thousand, nine hundred eighty-eight".