65425992243 has 16 divisors (see below), whose sum is σ = 93535303680. Its totient is φ = 40531959936.

The previous prime is 65425992227. The next prime is 65425992253. The reversal of 65425992243 is 34229952456.

It is a happy number.

It is not a de Polignac number, because 65425992243 - 2⁴ = 65425992227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (65425992223) 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, 8115355 + ... + 8123412.

It is an arithmetic number, because the mean of its divisors is an integer number (5845956480).

Almost surely, 2^65425992243 is an apocalyptic number.

65425992243 is a deficient number, since it is larger than the sum of its proper divisors (28109311437).

65425992243 is a wasteful number, since it uses less digits than its factorization.

65425992243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238866.

The product of its digits is 4665600, while the sum is 51.

The spelling of 65425992243 in words is "sixty-five billion, four hundred twenty-five million, nine hundred ninety-two thousand, two hundred forty-three".