65612445018 has 16 divisors (see below), whose sum is σ = 131239842240. Its totient is φ = 21868322976.

The previous prime is 65612444971. The next prime is 65612445071. The reversal of 65612445018 is 81054421656.

It is a super-3 number, since 3×65612445018³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565555 + ... + 671622.

It is an arithmetic number, because the mean of its divisors is an integer number (8202490140).

Almost surely, 2^65612445018 is an apocalyptic number.

65612445018 is an abundant number, since it is smaller than the sum of its proper divisors (65627397222).

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

65612445018 is a wasteful number, since it uses less digits than its factorization.

65612445018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246021.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 65612445018 in words is "sixty-five billion, six hundred twelve million, four hundred forty-five thousand, eighteen".