2070207215617 has 2 divisors, whose sum is σ = 2070207215618. Its totient is φ = 2070207215616.

The previous prime is 2070207215599. The next prime is 2070207215647. The reversal of 2070207215617 is 7165127020702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1181186406976 + 889020808641 = 1086824^2 + 942879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2070207215617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2070207215617.

It is not a weakly prime, because it can be changed into another prime (2070207215647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035103607808 + 1035103607809.

It is an arithmetic number, because the mean of its divisors is an integer number (1035103607809).

Almost surely, 2^{2070207215617} is an apocalyptic number.

It is an amenable number.

2070207215617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2070207215617 is an equidigital number, since it uses as much as digits as its factorization.

2070207215617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 2070207215617 in words is "two trillion, seventy billion, two hundred seven million, two hundred fifteen thousand, six hundred seventeen".