65448193806 has 32 divisors (see below), whose sum is σ = 145502839200. Its totient is φ = 21806703360.

The previous prime is 65448193799. The next prime is 65448193831. The reversal of 65448193806 is 60839184456.

65448193806 is a `hidden beast` number, since 6 + 5 + 448 + 193 + 8 + 0 + 6 = 666.

65448193806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 132451 + ... + 385278.

It is an arithmetic number, because the mean of its divisors is an integer number (4546963725).

Almost surely, 2^65448193806 is an apocalyptic number.

65448193806 is an abundant number, since it is smaller than the sum of its proper divisors (80054645394).

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

65448193806 is a wasteful number, since it uses less digits than its factorization.

65448193806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520081 (or 520075 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 65448193806 in words is "sixty-five billion, four hundred forty-eight million, one hundred ninety-three thousand, eight hundred six".