65669044 has 24 divisors (see below), whose sum is σ = 134543808. Its totient is φ = 27456960.

The previous prime is 65669039. The next prime is 65669063. The reversal of 65669044 is 44096656.

It is a junction number, because it is equal to n+sod(n) for n = 65668988 and 65669006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27454 + ... + 29749.

It is an arithmetic number, because the mean of its divisors is an integer number (5605992).

Almost surely, 2^65669044 is an apocalyptic number.

It is an amenable number.

65669044 is an abundant number, since it is smaller than the sum of its proper divisors (68874764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65669044 is a wasteful number, since it uses less digits than its factorization.

65669044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57255 (or 57253 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 65669044 is about 8103.6438717407. The cubic root of 65669044 is about 403.4473785977.

The spelling of 65669044 in words is "sixty-five million, six hundred sixty-nine thousand, forty-four".