20003498568 has 24 divisors (see below), whose sum is σ = 54176142150. Its totient is φ = 6667832832.

The previous prime is 20003498531. The next prime is 20003498609. The reversal of 20003498568 is 86589430002.

It can be written as a sum of positive squares in only one way, i.e., 14318036964 + 5685461604 = 119658^2 + 75402^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138913113 + ... + 138913256.

Almost surely, 2^20003498568 is an apocalyptic number.

It is an amenable number.

20003498568 is an abundant number, since it is smaller than the sum of its proper divisors (34172643582).

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

20003498568 is a wasteful number, since it uses less digits than its factorization.

20003498568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277826381 (or 277826374 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 20003498568 in words is "twenty billion, three million, four hundred ninety-eight thousand, five hundred sixty-eight".