120662664242 has 4 divisors (see below), whose sum is σ = 180993996366. Its totient is φ = 60331332120.

The previous prime is 120662664223. The next prime is 120662664271. The reversal of 120662664242 is 242466266021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112957160281 + 7705503961 = 336091^2 + 87781^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120662664242.

It is an unprimeable number.

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, 30165666059 + ... + 30165666062.

Almost surely, 2^120662664242 is an apocalyptic number.

120662664242 is a deficient number, since it is larger than the sum of its proper divisors (60331332124).

120662664242 is an equidigital number, since it uses as much as digits as its factorization.

120662664242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60331332123.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 120662664242 in words is "one hundred twenty billion, six hundred sixty-two million, six hundred sixty-four thousand, two hundred forty-two".