65850723922 has 8 divisors (see below), whose sum is σ = 102182157900. Its totient is φ = 31790004624.

The previous prime is 65850723901. The next prime is 65850723923. The reversal of 65850723922 is 22932705856.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62774801401 + 3075922521 = 250549^2 + 55461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (65850723923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567678597 + ... + 567678712.

Almost surely, 2^65850723922 is an apocalyptic number.

65850723922 is a deficient number, since it is larger than the sum of its proper divisors (36331433978).

65850723922 is a wasteful number, since it uses less digits than its factorization.

65850723922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135357340.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 65850723922 in words is "sixty-five billion, eight hundred fifty million, seven hundred twenty-three thousand, nine hundred twenty-two".