20146635073519 has 2 divisors, whose sum is σ = 20146635073520. Its totient is φ = 20146635073518.

The previous prime is 20146635073471. The next prime is 20146635073603. The reversal of 20146635073519 is 91537053664102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20146635073519 - 2¹⁹ = 20146634549231 is a prime.

It is a super-2 number, since 2×20146635073519² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146635077519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073317536759 + 10073317536760.

It is an arithmetic number, because the mean of its divisors is an integer number (10073317536760).

Almost surely, 2^{20146635073519} is an apocalyptic number.

20146635073519 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146635073519 is an equidigital number, since it uses as much as digits as its factorization.

20146635073519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 20146635073519 in words is "twenty trillion, one hundred forty-six billion, six hundred thirty-five million, seventy-three thousand, five hundred nineteen".