120777657215752 has 8 divisors (see below), whose sum is σ = 226458107279550. Its totient is φ = 60388828607872.

The previous prime is 120777657215741. The next prime is 120777657215843. The reversal of 120777657215752 is 257512756777021.

120777657215752 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 78154334164036 + 42623323051716 = 8840494^2 + 6528654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7548603575977 + ... + 7548603575992.

Almost surely, 2^{120777657215752} is an apocalyptic number.

It is an amenable number.

120777657215752 is a deficient number, since it is larger than the sum of its proper divisors (105680450063798).

120777657215752 is a wasteful number, since it uses less digits than its factorization.

120777657215752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15097207151975 (or 15097207151971 counting only the distinct ones).

The product of its (nonzero) digits is 100842000, while the sum is 64.

The spelling of 120777657215752 in words is "one hundred twenty trillion, seven hundred seventy-seven billion, six hundred fifty-seven million, two hundred fifteen thousand, seven hundred fifty-two".