70106550600721 has 2 divisors, whose sum is σ = 70106550600722. Its totient is φ = 70106550600720.

The previous prime is 70106550600719. The next prime is 70106550600743. The reversal of 70106550600721 is 12700605560107.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39489849969025 + 30616700631696 = 6284095^2 + 5533236^2 .

It is a cyclic number.

It is not a de Polignac number, because 70106550600721 - 2¹ = 70106550600719 is a prime.

Together with 70106550600719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70106550600761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35053275300360 + 35053275300361.

It is an arithmetic number, because the mean of its divisors is an integer number (35053275300361).

Almost surely, 2^{70106550600721} is an apocalyptic number.

It is an amenable number.

70106550600721 is a deficient number, since it is larger than the sum of its proper divisors (1).

70106550600721 is an equidigital number, since it uses as much as digits as its factorization.

70106550600721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 70106550600721 in words is "seventy trillion, one hundred six billion, five hundred fifty million, six hundred thousand, seven hundred twenty-one".