660116490 has 32 divisors (see below), whose sum is σ = 1728305856. Its totient is φ = 160028160.

The previous prime is 660116453. The next prime is 660116497. The reversal of 660116490 is 94611066.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (660116497) 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, 999847 + ... + 1000506.

It is an arithmetic number, because the mean of its divisors is an integer number (54009558).

Almost surely, 2^660116490 is an apocalyptic number.

660116490 is an abundant number, since it is smaller than the sum of its proper divisors (1068189366).

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

660116490 is a wasteful number, since it uses less digits than its factorization.

660116490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000374.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 660116490 is about 25692.7322408497. The cubic root of 660116490 is about 870.7099898616.

The spelling of 660116490 in words is "six hundred sixty million, one hundred sixteen thousand, four hundred ninety".