20365851147679 has 2 divisors, whose sum is σ = 20365851147680. Its totient is φ = 20365851147678.

The previous prime is 20365851147623. The next prime is 20365851147727. The reversal of 20365851147679 is 97674115856302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20365851147679 - 2²⁷ = 20365716929951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20365851147679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20365851147619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10182925573839 + 10182925573840.

It is an arithmetic number, because the mean of its divisors is an integer number (10182925573840).

It is a 1-persistent number, because it is pandigital, but 2⋅20365851147679 = 40731702295358 is not.

Almost surely, 2^{20365851147679} is an apocalyptic number.

20365851147679 is a deficient number, since it is larger than the sum of its proper divisors (1).

20365851147679 is an equidigital number, since it uses as much as digits as its factorization.

20365851147679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 20365851147679 in words is "twenty trillion, three hundred sixty-five billion, eight hundred fifty-one million, one hundred forty-seven thousand, six hundred seventy-nine".