660119520 has 96 divisors (see below), whose sum is σ = 2201719968. Its totient is φ = 165675008.

The previous prime is 660119513. The next prime is 660119521. The reversal of 660119520 is 25911066.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660119521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32289 + ... + 48608.

It is an arithmetic number, because the mean of its divisors is an integer number (22934583).

Almost surely, 2^660119520 is an apocalyptic number.

660119520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660119520 is an abundant number, since it is smaller than the sum of its proper divisors (1541600448).

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

660119520 is a wasteful number, since it uses less digits than its factorization.

660119520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80932 (or 80924 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 660119520 is about 25692.7912068736. The cubic root of 660119520 is about 870.7113220745.

The spelling of 660119520 in words is "six hundred sixty million, one hundred nineteen thousand, five hundred twenty".