65606145240 has 32 divisors (see below), whose sum is σ = 196818436080. Its totient is φ = 17494972032.

The previous prime is 65606145191. The next prime is 65606145299. The reversal of 65606145240 is 4254160656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273358819 + ... + 273359058.

Almost surely, 2^65606145240 is an apocalyptic number.

65606145240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65606145240 is an abundant number, since it is smaller than the sum of its proper divisors (131212290840).

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

65606145240 is a wasteful number, since it uses less digits than its factorization.

65606145240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546717891 (or 546717887 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 65606145240 in words is "sixty-five billion, six hundred six million, one hundred forty-five thousand, two hundred forty".