65146280835225 has 24 divisors (see below), whose sum is σ = 108170785992672. Its totient is φ = 34595564291200.

The previous prime is 65146280835221. The next prime is 65146280835227. The reversal of 65146280835225 is 52253808264156.

It is a happy number.

It is not a de Polignac number, because 65146280835225 - 2² = 65146280835221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65146280835221) 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, 1863967671 + ... + 1864002620.

It is an arithmetic number, because the mean of its divisors is an integer number (4507116083028).

Almost surely, 2^{65146280835225} is an apocalyptic number.

It is an amenable number.

65146280835225 is a deficient number, since it is larger than the sum of its proper divisors (43024505157447).

65146280835225 is a wasteful number, since it uses less digits than its factorization.

65146280835225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727970537 (or 3727970532 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 57.

The spelling of 65146280835225 in words is "sixty-five trillion, one hundred forty-six billion, two hundred eighty million, eight hundred thirty-five thousand, two hundred twenty-five".