65211423255 has 24 divisors (see below), whose sum is σ = 123308874000. Its totient is φ = 31617659520.

The previous prime is 65211423253. The next prime is 65211423257. The reversal of 65211423255 is 55232411256.

It is an interprime number because it is at equal distance from previous prime (65211423253) and next prime (65211423257).

It is not a de Polignac number, because 65211423255 - 2¹ = 65211423253 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 65869630 + ... + 65870619.

It is an arithmetic number, because the mean of its divisors is an integer number (5137869750).

Almost surely, 2^65211423255 is an apocalyptic number.

65211423255 is a deficient number, since it is larger than the sum of its proper divisors (58097450745).

65211423255 is a wasteful number, since it uses less digits than its factorization.

65211423255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131740271 (or 131740268 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 65211423255 in words is "sixty-five billion, two hundred eleven million, four hundred twenty-three thousand, two hundred fifty-five".