660941100 has 144 divisors (see below), whose sum is σ = 2160174240. Its totient is φ = 173318400.

The previous prime is 660941093. The next prime is 660941143. The reversal of 660941100 is 1149066.

660941100 is a `hidden beast` number, since 6 + 609 + 41 + 10 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162694 + ... + 166706.

It is an arithmetic number, because the mean of its divisors is an integer number (15001210).

Almost surely, 2^660941100 is an apocalyptic number.

660941100 is a gapful number since it is divisible by the number (60) 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 660941100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080087120).

660941100 is an abundant number, since it is smaller than the sum of its proper divisors (1499233140).

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

660941100 is a wasteful number, since it uses less digits than its factorization.

660941100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097 (or 4084 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 660941100 is about 25708.7747666045. The cubic root of 660941100 is about 871.0723993312.

The spelling of 660941100 in words is "six hundred sixty million, nine hundred forty-one thousand, one hundred".