20366699999 has 8 divisors (see below), whose sum is σ = 20777795760. Its totient is φ = 19958754816.

The previous prime is 20366699993. The next prime is 20366700019. The reversal of 20366699999 is 99999666302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20366699999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366699993) 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, 774584 + ... + 800445.

It is an arithmetic number, because the mean of its divisors is an integer number (2597224470).

Almost surely, 2^20366699999 is an apocalyptic number.

20366699999 is a deficient number, since it is larger than the sum of its proper divisors (411095761).

20366699999 is a wasteful number, since it uses less digits than its factorization.

20366699999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575289.

The product of its (nonzero) digits is 76527504, while the sum is 68.

The spelling of 20366699999 in words is "twenty billion, three hundred sixty-six million, six hundred ninety-nine thousand, nine hundred ninety-nine".