120806642047 has 16 divisors (see below), whose sum is σ = 149432281600. Its totient is φ = 95102944992.

The previous prime is 120806642039. The next prime is 120806642051. The reversal of 120806642047 is 740246608021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120806642047 - 2³ = 120806642039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120806642447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3317433 + ... + 3353650.

It is an arithmetic number, because the mean of its divisors is an integer number (9339517600).

Almost surely, 2^120806642047 is an apocalyptic number.

120806642047 is a deficient number, since it is larger than the sum of its proper divisors (28625639553).

120806642047 is a wasteful number, since it uses less digits than its factorization.

120806642047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671302.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 120806642047 in words is "one hundred twenty billion, eight hundred six million, six hundred forty-two thousand, forty-seven".