65120430624261 has 16 divisors (see below), whose sum is σ = 91937975169600. Its totient is φ = 40858433779968.

The previous prime is 65120430624209. The next prime is 65120430624287. The reversal of 65120430624261 is 16242603402156.

It is a happy number.

It is not a de Polignac number, because 65120430624261 - 2¹³ = 65120430616069 is a prime.

It is a super-2 number, since 2×65120430624261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120430624661) 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, 21108631 + ... + 23996148.

It is an arithmetic number, because the mean of its divisors is an integer number (5746123448100).

Almost surely, 2^{65120430624261} is an apocalyptic number.

It is an amenable number.

65120430624261 is a deficient number, since it is larger than the sum of its proper divisors (26817544545339).

65120430624261 is a wasteful number, since it uses less digits than its factorization.

65120430624261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45133108.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 65120430624261 in words is "sixty-five trillion, one hundred twenty billion, four hundred thirty million, six hundred twenty-four thousand, two hundred sixty-one".