120662665129 has 2 divisors, whose sum is σ = 120662665130. Its totient is φ = 120662665128.

The previous prime is 120662665121. The next prime is 120662665141. The reversal of 120662665129 is 921566266021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87072206400 + 33590458729 = 295080^2 + 183277^2 .

It is a cyclic number.

It is not a de Polignac number, because 120662665129 - 2³ = 120662665121 is a prime.

It is not a weakly prime, because it can be changed into another prime (120662665121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60331332564 + 60331332565.

It is an arithmetic number, because the mean of its divisors is an integer number (60331332565).

Almost surely, 2^120662665129 is an apocalyptic number.

It is an amenable number.

120662665129 is a deficient number, since it is larger than the sum of its proper divisors (1).

120662665129 is an equidigital number, since it uses as much as digits as its factorization.

120662665129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 120662665129 in words is "one hundred twenty billion, six hundred sixty-two million, six hundred sixty-five thousand, one hundred twenty-nine".