65263436256 has 48 divisors (see below), whose sum is σ = 171616693248. Its totient is φ = 21716361600.

The previous prime is 65263436213. The next prime is 65263436317.

It is a happy number.

65263436256 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×65263436256² (a number of 22 digits) contains 22 as substring.

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

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, 540480 + ... + 650111.

It is an arithmetic number, because the mean of its divisors is an integer number (3575347776).

Almost surely, 2^65263436256 is an apocalyptic number.

It is an amenable number.

65263436256 is an abundant number, since it is smaller than the sum of its proper divisors (106353256992).

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

65263436256 is a wasteful number, since it uses less digits than its factorization.

65263436256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191175 (or 1191167 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 48.

The spelling of 65263436256 in words is "sixty-five billion, two hundred sixty-three million, four hundred thirty-six thousand, two hundred fifty-six".