65722125122 has 4 divisors (see below), whose sum is σ = 98583187686. Its totient is φ = 32861062560.

The previous prime is 65722125113. The next prime is 65722125163. The reversal of 65722125122 is 22152122756.

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

It can be written as a sum of positive squares in only one way, i.e., 65632803721 + 89321401 = 256189^2 + 9451^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16430531279 + ... + 16430531282.

Almost surely, 2^65722125122 is an apocalyptic number.

65722125122 is a deficient number, since it is larger than the sum of its proper divisors (32861062564).

65722125122 is a wasteful number, since it uses less digits than its factorization.

65722125122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32861062563.

The product of its digits is 33600, while the sum is 35.

Adding to 65722125122 its reverse (22152122756), we get a palindrome (87874247878).

The spelling of 65722125122 in words is "sixty-five billion, seven hundred twenty-two million, one hundred twenty-five thousand, one hundred twenty-two".