120639953085 has 16 divisors (see below), whose sum is σ = 203183079360. Its totient is φ = 60954923520.

The previous prime is 120639953069. The next prime is 120639953131. The reversal of 120639953085 is 580359936021.

It is not a de Polignac number, because 120639953085 - 2⁴ = 120639953069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211648756 + ... + 211649325.

It is an arithmetic number, because the mean of its divisors is an integer number (12698942460).

Almost surely, 2^120639953085 is an apocalyptic number.

120639953085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120639953085 is a deficient number, since it is larger than the sum of its proper divisors (82543126275).

120639953085 is a wasteful number, since it uses less digits than its factorization.

120639953085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423298108.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 120639953085 in words is "one hundred twenty billion, six hundred thirty-nine million, nine hundred fifty-three thousand, eighty-five".