20690446223 has 16 divisors (see below), whose sum is σ = 21125522880. Its totient is φ = 20258726400.

The previous prime is 20690446201. The next prime is 20690446229. The reversal of 20690446223 is 32264409602.

It is a cyclic number.

It is not a de Polignac number, because 20690446223 - 2⁶ = 20690446159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20690446229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23484743 + ... + 23485623.

It is an arithmetic number, because the mean of its divisors is an integer number (1320345180).

Almost surely, 2^20690446223 is an apocalyptic number.

20690446223 is a deficient number, since it is larger than the sum of its proper divisors (435076657).

20690446223 is an equidigital number, since it uses as much as digits as its factorization.

20690446223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 20690446223 in words is "twenty billion, six hundred ninety million, four hundred forty-six thousand, two hundred twenty-three".