65435581120 has 112 divisors (see below), whose sum is σ = 191776673088. Its totient is φ = 20709273600.

The previous prime is 65435581111. The next prime is 65435581153. The reversal of 65435581120 is 2118553456.

65435581120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094431 + ... + 1152670.

It is an arithmetic number, because the mean of its divisors is an integer number (1712291724).

Almost surely, 2^65435581120 is an apocalyptic number.

It is an amenable number.

65435581120 is an abundant number, since it is smaller than the sum of its proper divisors (126341091968).

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

65435581120 is a wasteful number, since it uses less digits than its factorization.

65435581120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247138 (or 2247128 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 65435581120 in words is "sixty-five billion, four hundred thirty-five million, five hundred eighty-one thousand, one hundred twenty".