65400718706 has 8 divisors (see below), whose sum is σ = 98102336220. Its totient is φ = 32699939968.

The previous prime is 65400718687. The next prime is 65400718723. The reversal of 65400718706 is 60781700456.

It can be written as a sum of positive squares in 2 ways, for example, as 62537505625 + 2863213081 = 250075^2 + 53509^2 .

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

It is a super-2 number, since 2×65400718706² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49130 + ... + 364986.

Almost surely, 2^65400718706 is an apocalyptic number.

65400718706 is a deficient number, since it is larger than the sum of its proper divisors (32701617514).

65400718706 is a wasteful number, since it uses less digits than its factorization.

65400718706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419388.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 65400718706 in words is "sixty-five billion, four hundred million, seven hundred eighteen thousand, seven hundred six".