660565050 has 48 divisors (see below), whose sum is σ = 1691058432. Its totient is φ = 170467200.

The previous prime is 660565049. The next prime is 660565051. The reversal of 660565050 is 50565066.

It is an interprime number because it is at equal distance from previous prime (660565049) and next prime (660565051).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (660565051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66379 + ... + 75678.

It is an arithmetic number, because the mean of its divisors is an integer number (35230384).

Almost surely, 2^660565050 is an apocalyptic number.

660565050 is an abundant number, since it is smaller than the sum of its proper divisors (1030493382).

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

660565050 is a wasteful number, since it uses less digits than its factorization.

660565050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142103 (or 142098 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 660565050 is about 25701.4600752564. The cubic root of 660565050 is about 870.9071657879.

The spelling of 660565050 in words is "six hundred sixty million, five hundred sixty-five thousand, fifty".