65762245121 has 4 divisors (see below), whose sum is σ = 65769839700. Its totient is φ = 65754650544.

The previous prime is 65762245111. The next prime is 65762245139. The reversal of 65762245121 is 12154226756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51954820096 + 13807425025 = 227936^2 + 117505^2 .

It is a cyclic number.

It is not a de Polignac number, because 65762245121 - 2¹⁸ = 65761982977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65762245111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3784286 + ... + 3801623.

It is an arithmetic number, because the mean of its divisors is an integer number (16442459925).

Almost surely, 2^65762245121 is an apocalyptic number.

It is an amenable number.

65762245121 is a deficient number, since it is larger than the sum of its proper divisors (7594579).

65762245121 is an equidigital number, since it uses as much as digits as its factorization.

65762245121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594578.

The product of its digits is 201600, while the sum is 41.

The spelling of 65762245121 in words is "sixty-five billion, seven hundred sixty-two million, two hundred forty-five thousand, one hundred twenty-one".