20703955669 has 8 divisors (see below), whose sum is σ = 21106484280. Its totient is φ = 20301867456.

The previous prime is 20703955651. The next prime is 20703955673. The reversal of 20703955669 is 96655930702.

It can be written as a sum of positive squares in 4 ways, for example, as 7967704644 + 12736251025 = 89262^2 + 112855^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20703955669 - 2⁵ = 20703955637 is a prime.

It is a super-2 number, since 2×20703955669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20703955469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14362 + ... + 203995.

It is an arithmetic number, because the mean of its divisors is an integer number (2638310535).

Almost surely, 2^20703955669 is an apocalyptic number.

It is an amenable number.

20703955669 is a deficient number, since it is larger than the sum of its proper divisors (402528611).

20703955669 is a wasteful number, since it uses less digits than its factorization.

20703955669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220199.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 20703955669 in words is "twenty billion, seven hundred three million, nine hundred fifty-five thousand, six hundred sixty-nine".