64165436 has 6 divisors (see below), whose sum is σ = 112289520. Its totient is φ = 32082716.

The previous prime is 64165427. The next prime is 64165547. The reversal of 64165436 is 63456146.

It is a junction number, because it is equal to n+sod(n) for n = 64165396 and 64165405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8020676 + ... + 8020683.

It is an arithmetic number, because the mean of its divisors is an integer number (18714920).

Almost surely, 2^64165436 is an apocalyptic number.

It is an amenable number.

64165436 is a deficient number, since it is larger than the sum of its proper divisors (48124084).

64165436 is a wasteful number, since it uses less digits than its factorization.

64165436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16041363 (or 16041361 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 64165436 is about 8010.3330767203. Note that the first 3 decimals coincide. The cubic root of 64165436 is about 400.3443617857.

The spelling of 64165436 in words is "sixty-four million, one hundred sixty-five thousand, four hundred thirty-six".