65242156250 has 56 divisors (see below), whose sum is σ = 122785381452. Its totient is φ = 25999200000.

The previous prime is 65242156211. The next prime is 65242156313. The reversal of 65242156250 is 5265124256.

It is a happy number.

It can be written as a sum of positive squares in 14 ways, for example, as 63857795401 + 1384360849 = 252701^2 + 37207^2 .

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 8652482 + ... + 8660018.

Almost surely, 2^65242156250 is an apocalyptic number.

65242156250 is a deficient number, since it is larger than the sum of its proper divisors (57543225202).

65242156250 is an frugal number, since it uses more digits than its factorization.

65242156250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7821 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 65242156250 in words is "sixty-five billion, two hundred forty-two million, one hundred fifty-six thousand, two hundred fifty".