20124175236551 has 2 divisors, whose sum is σ = 20124175236552. Its totient is φ = 20124175236550.

The previous prime is 20124175236527. The next prime is 20124175236593. The reversal of 20124175236551 is 15563257142102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20124175236551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124175236511) 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, 10062087618275 + 10062087618276.

It is an arithmetic number, because the mean of its divisors is an integer number (10062087618276).

Almost surely, 2^{20124175236551} is an apocalyptic number.

20124175236551 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124175236551 is an equidigital number, since it uses as much as digits as its factorization.

20124175236551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 20124175236551 in words is "twenty trillion, one hundred twenty-four billion, one hundred seventy-five million, two hundred thirty-six thousand, five hundred fifty-one".