20667414239 has 2 divisors, whose sum is σ = 20667414240. Its totient is φ = 20667414238.

The previous prime is 20667414227. The next prime is 20667414259. The reversal of 20667414239 is 93241476602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20667414239 - 2²⁰ = 20666365663 is a prime.

It is a super-2 number, since 2×20667414239² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20667414239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20667414259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10333707119 + 10333707120.

It is an arithmetic number, because the mean of its divisors is an integer number (10333707120).

Almost surely, 2^20667414239 is an apocalyptic number.

20667414239 is a deficient number, since it is larger than the sum of its proper divisors (1).

20667414239 is an equidigital number, since it uses as much as digits as its factorization.

20667414239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 20667414239 in words is "twenty billion, six hundred sixty-seven million, four hundred fourteen thousand, two hundred thirty-nine".