20530261148707 has 2 divisors, whose sum is σ = 20530261148708. Its totient is φ = 20530261148706.

The previous prime is 20530261148633. The next prime is 20530261148711. The reversal of 20530261148707 is 70784116203502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20530261148707 is a prime.

It is not a weakly prime, because it can be changed into another prime (20530261188707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265130574353 + 10265130574354.

It is an arithmetic number, because the mean of its divisors is an integer number (10265130574354).

Almost surely, 2^{20530261148707} is an apocalyptic number.

20530261148707 is a deficient number, since it is larger than the sum of its proper divisors (1).

20530261148707 is an equidigital number, since it uses as much as digits as its factorization.

20530261148707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 20530261148707 in words is "twenty trillion, five hundred thirty billion, two hundred sixty-one million, one hundred forty-eight thousand, seven hundred seven".