65020669 has 8 divisors (see below), whose sum is σ = 75045888. Its totient is φ = 55179600.

The previous prime is 65020651. The next prime is 65020691. The reversal of 65020669 is 96602056.

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

It is not a de Polignac number, because 65020669 - 2⁷ = 65020541 is a prime.

It is a super-2 number, since 2×65020669² = 8455374794415122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65020649) 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, 45277 + ... + 46690.

It is an arithmetic number, because the mean of its divisors is an integer number (9380736).

Almost surely, 2^65020669 is an apocalyptic number.

It is an amenable number.

65020669 is a deficient number, since it is larger than the sum of its proper divisors (10025219).

65020669 is a wasteful number, since it uses less digits than its factorization.

65020669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92075.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 65020669 is about 8063.5394833783. The cubic root of 65020669 is about 402.1151889736.

The spelling of 65020669 in words is "sixty-five million, twenty thousand, six hundred sixty-nine".