65211423256 has 64 divisors (see below), whose sum is σ = 147258362880. Its totient is φ = 26467900800.

The previous prime is 65211423253. The next prime is 65211423257. The reversal of 65211423256 is 65232411256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65211423253) 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, 120556 + ... + 380731.

It is an arithmetic number, because the mean of its divisors is an integer number (2300911920).

Almost surely, 2^65211423256 is an apocalyptic number.

It is an amenable number.

65211423256 is an abundant number, since it is smaller than the sum of its proper divisors (82046939624).

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

65211423256 is a wasteful number, since it uses less digits than its factorization.

65211423256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501424 (or 501420 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 65211423256 in words is "sixty-five billion, two hundred eleven million, four hundred twenty-three thousand, two hundred fifty-six".