20988251332 has 24 divisors (see below), whose sum is σ = 37750907264. Its totient is φ = 10202710752.

The previous prime is 20988251327. The next prime is 20988251351. The reversal of 20988251332 is 23315288902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142963 + ... + 249829.

Almost surely, 2^20988251332 is an apocalyptic number.

It is an amenable number.

20988251332 is a deficient number, since it is larger than the sum of its proper divisors (16762655932).

20988251332 is a wasteful number, since it uses less digits than its factorization.

20988251332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108235 (or 108233 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 20988251332 in words is "twenty billion, nine hundred eighty-eight million, two hundred fifty-one thousand, three hundred thirty-two".