20495322288 has 60 divisors (see below), whose sum is σ = 65552502288. Its totient is φ = 5855806080.

The previous prime is 20495322277. The next prime is 20495322301. The reversal of 20495322288 is 88222359402.

20495322288 is a `hidden beast` number, since 2 + 0 + 49 + 5 + 322 + 288 = 666.

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 11 ways as a sum of consecutive naturals, for example, 10165323 + ... + 10167338.

Almost surely, 2^20495322288 is an apocalyptic number.

20495322288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20495322288 is an abundant number, since it is smaller than the sum of its proper divisors (45057180000).

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

20495322288 is a wasteful number, since it uses less digits than its factorization.

20495322288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20332682 (or 20332673 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 20495322288 in words is "twenty billion, four hundred ninety-five million, three hundred twenty-two thousand, two hundred eighty-eight".