6565601490 has 32 divisors (see below), whose sum is σ = 18008507520. Its totient is φ = 1500708864.

The previous prime is 6565601473. The next prime is 6565601491. The reversal of 6565601490 is 941065656.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6565601491) 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, 15632175 + ... + 15632594.

It is an arithmetic number, because the mean of its divisors is an integer number (562765860).

Almost surely, 2^6565601490 is an apocalyptic number.

6565601490 is an abundant number, since it is smaller than the sum of its proper divisors (11442906030).

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

6565601490 is a wasteful number, since it uses less digits than its factorization.

6565601490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31264786.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 6565601490 is about 81028.3992807460. The cubic root of 6565601490 is about 1872.5129921030.

The spelling of 6565601490 in words is "six billion, five hundred sixty-five million, six hundred one thousand, four hundred ninety".