64766136 has 32 divisors (see below), whose sum is σ = 170438400. Its totient is φ = 20452320.

The previous prime is 64766123. The next prime is 64766171. The reversal of 64766136 is 63166746.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64766094 and 64766103.

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, 70560 + ... + 71471.

It is an arithmetic number, because the mean of its divisors is an integer number (5326200).

Almost surely, 2^64766136 is an apocalyptic number.

It is an amenable number.

64766136 is an abundant number, since it is smaller than the sum of its proper divisors (105672264).

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

64766136 is a wasteful number, since it uses less digits than its factorization.

64766136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142059 (or 142055 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 64766136 is about 8047.7410495120. The cubic root of 64766136 is about 401.5897897173.

The spelling of 64766136 in words is "sixty-four million, seven hundred sixty-six thousand, one hundred thirty-six".