20145207614767 has 2 divisors, whose sum is σ = 20145207614768. Its totient is φ = 20145207614766.

The previous prime is 20145207614683. The next prime is 20145207614839. The reversal of 20145207614767 is 76741670254102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20145207614767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20145207644767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072603807383 + 10072603807384.

It is an arithmetic number, because the mean of its divisors is an integer number (10072603807384).

Almost surely, 2^{20145207614767} is an apocalyptic number.

20145207614767 is a deficient number, since it is larger than the sum of its proper divisors (1).

20145207614767 is an equidigital number, since it uses as much as digits as its factorization.

20145207614767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3951360, while the sum is 52.

Adding to 20145207614767 its reverse (76741670254102), we get a palindrome (96886877868869).

The spelling of 20145207614767 in words is "twenty trillion, one hundred forty-five billion, two hundred seven million, six hundred fourteen thousand, seven hundred sixty-seven".