65660530738 has 8 divisors (see below), whose sum is σ = 107444504880. Its totient is φ = 29845695780.

The previous prime is 65660530717. The next prime is 65660530753. The reversal of 65660530738 is 83703506656.

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

It is a super-2 number, since 2×65660530738² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65660530691 and 65660530700.

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, 1492284768 + ... + 1492284811.

It is an arithmetic number, because the mean of its divisors is an integer number (13430563110).

Almost surely, 2^65660530738 is an apocalyptic number.

65660530738 is a deficient number, since it is larger than the sum of its proper divisors (41783974142).

65660530738 is a wasteful number, since it uses less digits than its factorization.

65660530738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984569592.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 65660530738 in words is "sixty-five billion, six hundred sixty million, five hundred thirty thousand, seven hundred thirty-eight".