20214720085 has 16 divisors (see below), whose sum is σ = 27727007616. Its totient is φ = 13859540928.

The previous prime is 20214720049. The next prime is 20214720109. The reversal of 20214720085 is 58002741202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20214720085 - 2²¹ = 20212622933 is a prime.

It is a super-2 number, since 2×20214720085² (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 15 ways as a sum of consecutive naturals, for example, 232674 + ... + 307516.

It is an arithmetic number, because the mean of its divisors is an integer number (1732937976).

Almost surely, 2^20214720085 is an apocalyptic number.

It is an amenable number.

20214720085 is a deficient number, since it is larger than the sum of its proper divisors (7512287531).

20214720085 is an equidigital number, since it uses as much as digits as its factorization.

20214720085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82572.

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 20214720085 in words is "twenty billion, two hundred fourteen million, seven hundred twenty thousand, eighty-five".