5070205661 has 2 divisors, whose sum is σ = 5070205662. Its totient is φ = 5070205660.

The previous prime is 5070205649. The next prime is 5070205669. The reversal of 5070205661 is 1665020705.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3234083161 + 1836122500 = 56869^2 + 42850^2 .

It is a cyclic number.

It is not a de Polignac number, because 5070205661 - 2²⁶ = 5003096797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5070205669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535102830 + 2535102831.

It is an arithmetic number, because the mean of its divisors is an integer number (2535102831).

Almost surely, 2^5070205661 is an apocalyptic number.

It is an amenable number.

5070205661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5070205661 is an equidigital number, since it uses as much as digits as its factorization.

5070205661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 5070205661 is about 71205.3766298585. The cubic root of 5070205661 is about 1717.9421103276.

The spelling of 5070205661 in words is "five billion, seventy million, two hundred five thousand, six hundred sixty-one".