65371565040 has 40 divisors (see below), whose sum is σ = 202651852368. Its totient is φ = 17432417280.

The previous prime is 65371565033. The next prime is 65371565059. The reversal of 65371565040 is 4056517356.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 65371564983 and 65371565001.

It is a congruent number.

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, 136190521 + ... + 136191000.

Almost surely, 2^65371565040 is an apocalyptic number.

65371565040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65371565040 is an abundant number, since it is smaller than the sum of its proper divisors (137280287328).

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

65371565040 is a wasteful number, since it uses less digits than its factorization.

65371565040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272381537 (or 272381531 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 65371565040 in words is "sixty-five billion, three hundred seventy-one million, five hundred sixty-five thousand, forty".