20284818085 has 8 divisors (see below), whose sum is σ = 27819179136. Its totient is φ = 13909589520.

The previous prime is 20284818067. The next prime is 20284818097. The reversal of 20284818085 is 58081848202.

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

It is not a de Polignac number, because 20284818085 - 2⁷ = 20284817957 is a prime.

It is a super-2 number, since 2×20284818085² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289783081 + ... + 289783150.

It is an arithmetic number, because the mean of its divisors is an integer number (3477397392).

Almost surely, 2^20284818085 is an apocalyptic number.

It is an amenable number.

20284818085 is a deficient number, since it is larger than the sum of its proper divisors (7534361051).

20284818085 is an equidigital number, since it uses as much as digits as its factorization.

20284818085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579566243.

The product of its (nonzero) digits is 327680, while the sum is 46.

The spelling of 20284818085 in words is "twenty billion, two hundred eighty-four million, eight hundred eighteen thousand, eighty-five".