2005701615647 has 2 divisors, whose sum is σ = 2005701615648. Its totient is φ = 2005701615646.

The previous prime is 2005701615569. The next prime is 2005701615721. The reversal of 2005701615647 is 7465161075002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2005701615647 - 2⁸ = 2005701615391 is a prime.

It is a super-2 number, since 2×2005701615647² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2005701615598 and 2005701615607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005701215647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002850807823 + 1002850807824.

It is an arithmetic number, because the mean of its divisors is an integer number (1002850807824).

Almost surely, 2^{2005701615647} is an apocalyptic number.

2005701615647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005701615647 is an equidigital number, since it uses as much as digits as its factorization.

2005701615647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 2005701615647 in words is "two trillion, five billion, seven hundred one million, six hundred fifteen thousand, six hundred forty-seven".