65420737253 has 8 divisors (see below), whose sum is σ = 67535892480. Its totient is φ = 63305882640.

The previous prime is 65420737247. The next prime is 65420737279. The reversal of 65420737253 is 35273702456.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65420737253 - 2¹⁶ = 65420671717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65420737153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418751 + ... + 553347.

It is an arithmetic number, because the mean of its divisors is an integer number (8441986560).

Almost surely, 2^65420737253 is an apocalyptic number.

It is an amenable number.

65420737253 is a deficient number, since it is larger than the sum of its proper divisors (2115155227).

65420737253 is a wasteful number, since it uses less digits than its factorization.

65420737253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150307.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 65420737253 in words is "sixty-five billion, four hundred twenty million, seven hundred thirty-seven thousand, two hundred fifty-three".