65770330 has 8 divisors (see below), whose sum is σ = 118386612. Its totient is φ = 26308128.

The previous prime is 65770321. The next prime is 65770333. The reversal of 65770330 is 3307756.

It can be written as a sum of positive squares in 2 ways, for example, as 63728289 + 2042041 = 7983^2 + 1429^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 65770292 and 65770301.

It is not an unprimeable number, because it can be changed into a prime (65770333) 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, 3288507 + ... + 3288526.

Almost surely, 2^65770330 is an apocalyptic number.

65770330 is a deficient number, since it is larger than the sum of its proper divisors (52616282).

65770330 is a wasteful number, since it uses less digits than its factorization.

65770330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577040.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 65770330 is about 8109.8908747282. The cubic root of 65770330 is about 403.6546938346.

The spelling of 65770330 in words is "sixty-five million, seven hundred seventy thousand, three hundred thirty".