65648135450 has 12 divisors (see below), whose sum is σ = 122105532030. Its totient is φ = 26259254160.

The previous prime is 65648135431. The next prime is 65648135467. The reversal of 65648135450 is 5453184656.

It can be written as a sum of positive squares in 3 ways, for example, as 48683333449 + 16964802001 = 220643^2 + 130249^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65648135395 and 65648135404.

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 5 ways as a sum of consecutive naturals, for example, 656481305 + ... + 656481404.

Almost surely, 2^65648135450 is an apocalyptic number.

65648135450 is a deficient number, since it is larger than the sum of its proper divisors (56457396580).

65648135450 is a wasteful number, since it uses less digits than its factorization.

65648135450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312962721 (or 1312962716 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 65648135450 in words is "sixty-five billion, six hundred forty-eight million, one hundred thirty-five thousand, four hundred fifty".