120165980 has 48 divisors (see below), whose sum is σ = 278014464. Its totient is φ = 43264320.

The previous prime is 120165971. The next prime is 120166001. The reversal of 120165980 is 89561021.

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, 20009 + ... + 25311.

It is an arithmetic number, because the mean of its divisors is an integer number (5791968).

Almost surely, 2^120165980 is an apocalyptic number.

120165980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120165980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139007232).

120165980 is an abundant number, since it is smaller than the sum of its proper divisors (157848484).

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

120165980 is a wasteful number, since it uses less digits than its factorization.

120165980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 120165980 is about 10962.0244480662. The cubic root of 120165980 is about 493.4697222526.

The spelling of 120165980 in words is "one hundred twenty million, one hundred sixty-five thousand, nine hundred eighty".