20324550145747 has 2 divisors, whose sum is σ = 20324550145748. Its totient is φ = 20324550145746.

The previous prime is 20324550145727. The next prime is 20324550145759. The reversal of 20324550145747 is 74754105542302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20324550145747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20324550145747.

It is not a weakly prime, because it can be changed into another prime (20324550145717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162275072873 + 10162275072874.

It is an arithmetic number, because the mean of its divisors is an integer number (10162275072874).

Almost surely, 2^{20324550145747} is an apocalyptic number.

20324550145747 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324550145747 is an equidigital number, since it uses as much as digits as its factorization.

20324550145747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704000, while the sum is 49.

The spelling of 20324550145747 in words is "twenty trillion, three hundred twenty-four billion, five hundred fifty million, one hundred forty-five thousand, seven hundred forty-seven".