660311160 has 128 divisors (see below), whose sum is σ = 2061158400. Its totient is φ = 169044480.

The previous prime is 660311159. The next prime is 660311177. The reversal of 660311160 is 61113066.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 660311160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516442 + ... + 517718.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^660311160 is an apocalyptic number.

660311160 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 660311160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030579200).

660311160 is an abundant number, since it is smaller than the sum of its proper divisors (1400847240).

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

660311160 is a wasteful number, since it uses less digits than its factorization.

660311160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 660311160 is about 25696.5203870096. The cubic root of 660311160 is about 870.7955729654.

The spelling of 660311160 in words is "six hundred sixty million, three hundred eleven thousand, one hundred sixty".