65249515422 has 48 divisors (see below), whose sum is σ = 173998712160. Its totient is φ = 17208662976.

The previous prime is 65249515421. The next prime is 65249515427. The reversal of 65249515422 is 22451594256.

65249515422 is a `hidden beast` number, since 6 + 5 + 2 + 495 + 154 + 2 + 2 = 666.

It is a super-3 number, since 3×65249515422³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65249515421) 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, 19915797 + ... + 19919072.

It is an arithmetic number, because the mean of its divisors is an integer number (3624973170).

Almost surely, 2^65249515422 is an apocalyptic number.

65249515422 is an abundant number, since it is smaller than the sum of its proper divisors (108749196738).

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

65249515422 is a wasteful number, since it uses less digits than its factorization.

65249515422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39834897 (or 39834894 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 65249515422 in words is "sixty-five billion, two hundred forty-nine million, five hundred fifteen thousand, four hundred twenty-two".