65137802448 has 40 divisors (see below), whose sum is σ = 177129114400. Its totient is φ = 20569832064.

The previous prime is 65137802419. The next prime is 65137802459. The reversal of 65137802448 is 84420873156.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 65137802397 and 65137802406.

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, 35710603 + ... + 35712426.

It is an arithmetic number, because the mean of its divisors is an integer number (4428227860).

Almost surely, 2^65137802448 is an apocalyptic number.

It is an amenable number.

65137802448 is an abundant number, since it is smaller than the sum of its proper divisors (111991311952).

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

65137802448 is a wasteful number, since it uses less digits than its factorization.

65137802448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71423059 (or 71423053 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 65137802448 in words is "sixty-five billion, one hundred thirty-seven million, eight hundred two thousand, four hundred forty-eight".