120911660 has 12 divisors (see below), whose sum is σ = 253914528. Its totient is φ = 48364656.

The previous prime is 120911653. The next prime is 120911663. The reversal of 120911660 is 66119021.

It is not an unprimeable number, because it can be changed into a prime (120911663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022772 + ... + 3022811.

It is an arithmetic number, because the mean of its divisors is an integer number (21159544).

Almost surely, 2^120911660 is an apocalyptic number.

120911660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120911660 is an abundant number, since it is smaller than the sum of its proper divisors (133002868).

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

120911660 is a wasteful number, since it uses less digits than its factorization.

120911660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045592 (or 6045590 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 120911660 is about 10995.9838122835. The cubic root of 120911660 is about 494.4883466000.

The spelling of 120911660 in words is "one hundred twenty million, nine hundred eleven thousand, six hundred sixty".