120666115066520 has 32 divisors (see below), whose sum is σ = 271500875654400. Its totient is φ = 48266069714688.

The previous prime is 120666115066411. The next prime is 120666115066559. The reversal of 120666115066520 is 25660511666021.

It is a super-4 number, since 4×120666115066520⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6536504 + ... + 16854023.

It is an arithmetic number, because the mean of its divisors is an integer number (8484402364200).

Almost surely, 2^{120666115066520} is an apocalyptic number.

120666115066520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120666115066520 is an abundant number, since it is smaller than the sum of its proper divisors (150834760587880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120666115066520 is a wasteful number, since it uses less digits than its factorization.

120666115066520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23519507 (or 23519503 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 120666115066520 in words is "one hundred twenty trillion, six hundred sixty-six billion, one hundred fifteen million, sixty-six thousand, five hundred twenty".