119661720 has 64 divisors (see below), whose sum is σ = 359838720. Its totient is φ = 31833984.

The previous prime is 119661719. The next prime is 119661749. The reversal of 119661720 is 27166911.

It is a Cunningham number, because it is equal to 10939²-1.

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, 64729 + ... + 66551.

It is an arithmetic number, because the mean of its divisors is an integer number (5622480).

Almost surely, 2^119661720 is an apocalyptic number.

119661720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

119661720 is an abundant number, since it is smaller than the sum of its proper divisors (240177000).

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

119661720 is a wasteful number, since it uses less digits than its factorization.

119661720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 119661720 is about 10938.9999542920. Note that the first 4 decimals coincide. The cubic root of 119661720 is about 492.7784952069.

The spelling of 119661720 in words is "one hundred nineteen million, six hundred sixty-one thousand, seven hundred twenty".