65487433478456 has 64 divisors (see below), whose sum is σ = 135763938414720. Its totient is φ = 29365316590720.

The previous prime is 65487433478437. The next prime is 65487433478459.

65487433478456 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65487433478456² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65487433478459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575035 + ... + 11552298.

It is an arithmetic number, because the mean of its divisors is an integer number (2121311537730).

Almost surely, 2^{65487433478456} is an apocalyptic number.

It is an amenable number.

65487433478456 is an abundant number, since it is smaller than the sum of its proper divisors (70276504936264).

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

65487433478456 is a wasteful number, since it uses less digits than its factorization.

65487433478456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128116 (or 13128112 counting only the distinct ones).

The product of its digits is 6502809600, while the sum is 74.

The spelling of 65487433478456 in words is "sixty-five trillion, four hundred eighty-seven billion, four hundred thirty-three million, four hundred seventy-eight thousand, four hundred fifty-six".