65420737252 has 24 divisors (see below), whose sum is σ = 123464476800. Its totient is φ = 30152174496.

The previous prime is 65420737247. The next prime is 65420737279. The reversal of 65420737252 is 25273702456.

It is a junction number, because it is equal to n+sod(n) for n = 65420737199 and 65420737208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837502 + ... + 912277.

It is an arithmetic number, because the mean of its divisors is an integer number (5144353200).

Almost surely, 2^65420737252 is an apocalyptic number.

It is an amenable number.

65420737252 is a deficient number, since it is larger than the sum of its proper divisors (58043739548).

65420737252 is a wasteful number, since it uses less digits than its factorization.

65420737252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750515 (or 1750513 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 65420737252 in words is "sixty-five billion, four hundred twenty million, seven hundred thirty-seven thousand, two hundred fifty-two".