20497016598 has 16 divisors (see below), whose sum is σ = 40995439536. Its totient is φ = 6832104480.

The previous prime is 20497016567. The next prime is 20497016609. The reversal of 20497016598 is 89561079402.

It is a self number, because there is not a number n which added to its sum of digits gives 20497016598.

It is a congruent number.

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, 295140 + ... + 357912.

It is an arithmetic number, because the mean of its divisors is an integer number (2562214971).

Almost surely, 2^20497016598 is an apocalyptic number.

20497016598 is an abundant number, since it is smaller than the sum of its proper divisors (20498422938).

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

20497016598 is a wasteful number, since it uses less digits than its factorization.

20497016598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117199.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 20497016598 in words is "twenty billion, four hundred ninety-seven million, sixteen thousand, five hundred ninety-eight".