20217480699 has 8 divisors (see below), whose sum is σ = 29030228752. Its totient is φ = 12441526560.

The previous prime is 20217480697. The next prime is 20217480713. The reversal of 20217480699 is 99608471202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20217480699 - 2¹ = 20217480697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20217480691) by changing a digit.

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, 259198432 + ... + 259198509.

It is an arithmetic number, because the mean of its divisors is an integer number (3628778594).

Almost surely, 2^20217480699 is an apocalyptic number.

20217480699 is a deficient number, since it is larger than the sum of its proper divisors (8812748053).

20217480699 is a wasteful number, since it uses less digits than its factorization.

20217480699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518396957.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 20217480699 in words is "twenty billion, two hundred seventeen million, four hundred eighty thousand, six hundred ninety-nine".