120777755605670 has 8 divisors (see below), whose sum is σ = 217399960090224. Its totient is φ = 48311102242264.

The previous prime is 120777755605657. The next prime is 120777755605687. The reversal of 120777755605670 is 76506557777021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×120777755605670² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120777755605597 and 120777755605606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6038887780274 + ... + 6038887780293.

It is an arithmetic number, because the mean of its divisors is an integer number (27174995011278).

Almost surely, 2^{120777755605670} is an apocalyptic number.

120777755605670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120777755605670 is a deficient number, since it is larger than the sum of its proper divisors (96622204484554).

120777755605670 is a wasteful number, since it uses less digits than its factorization.

120777755605670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12077775560574.

The product of its (nonzero) digits is 151263000, while the sum is 65.

The spelling of 120777755605670 in words is "one hundred twenty trillion, seven hundred seventy-seven billion, seven hundred fifty-five million, six hundred five thousand, six hundred seventy".