70616102021 has 2 divisors, whose sum is σ = 70616102022. Its totient is φ = 70616102020.

The previous prime is 70616102017. The next prime is 70616102071. The reversal of 70616102021 is 12020161607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66247552996 + 4368549025 = 257386^2 + 66095^2 .

It is an emirp because it is prime and its reverse (12020161607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70616102021 - 2² = 70616102017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70616102071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35308051010 + 35308051011.

It is an arithmetic number, because the mean of its divisors is an integer number (35308051011).

Almost surely, 2^70616102021 is an apocalyptic number.

It is an amenable number.

70616102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

70616102021 is an equidigital number, since it uses as much as digits as its factorization.

70616102021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 70616102021 its reverse (12020161607), we get a palindrome (82636263628).

The spelling of 70616102021 in words is "seventy billion, six hundred sixteen million, one hundred two thousand, twenty-one".