65439880551460 has 48 divisors (see below), whose sum is σ = 137635709875776. Its totient is φ = 26135584751232.

The previous prime is 65439880551421. The next prime is 65439880551523. The reversal of 65439880551460 is 6415508893456.

It is a junction number, because it is equal to n+sod(n) for n = 65439880551392 and 65439880551401.

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, 181046674 + ... + 181407766.

It is an arithmetic number, because the mean of its divisors is an integer number (2867410622412).

Almost surely, 2^{65439880551460} is an apocalyptic number.

It is an amenable number.

65439880551460 is an abundant number, since it is smaller than the sum of its proper divisors (72195829324316).

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

65439880551460 is a wasteful number, since it uses less digits than its factorization.

65439880551460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375052 (or 375050 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 65439880551460 in words is "sixty-five trillion, four hundred thirty-nine billion, eight hundred eighty million, five hundred fifty-one thousand, four hundred sixty".