120821875165652 has 48 divisors (see below), whose sum is σ = 216795885250560. Its totient is φ = 58885941528288.

The previous prime is 120821875165639. The next prime is 120821875165661. The reversal of 120821875165652 is 256561578128021.

It is a junction number, because it is equal to n+sod(n) for n = 120821875165591 and 120821875165600.

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, 768415499 + ... + 768572717.

It is an arithmetic number, because the mean of its divisors is an integer number (4516580942720).

Almost surely, 2^{120821875165652} is an apocalyptic number.

It is an amenable number.

120821875165652 is a deficient number, since it is larger than the sum of its proper divisors (95974010084908).

120821875165652 is a wasteful number, since it uses less digits than its factorization.

120821875165652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166332 (or 166330 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 59.

The spelling of 120821875165652 in words is "one hundred twenty trillion, eight hundred twenty-one billion, eight hundred seventy-five million, one hundred sixty-five thousand, six hundred fifty-two".