70566164659 has 2 divisors, whose sum is σ = 70566164660. Its totient is φ = 70566164658.

The previous prime is 70566164633. The next prime is 70566164681. The reversal of 70566164659 is 95646166507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70566164659 - 2⁹ = 70566164147 is a prime.

It is a super-2 number, since 2×70566164659² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70566164699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35283082329 + 35283082330.

It is an arithmetic number, because the mean of its divisors is an integer number (35283082330).

Almost surely, 2^70566164659 is an apocalyptic number.

70566164659 is a deficient number, since it is larger than the sum of its proper divisors (1).

70566164659 is an equidigital number, since it uses as much as digits as its factorization.

70566164659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 55.

It can be divided in two parts, 70566 and 164659, that added together give a square (235225 = 485²).

The spelling of 70566164659 in words is "seventy billion, five hundred sixty-six million, one hundred sixty-four thousand, six hundred fifty-nine".