64136066 has 8 divisors (see below), whose sum is σ = 96240144. Its totient is φ = 32056020.

The previous prime is 64136063. The next prime is 64136089. The reversal of 64136066 is 66063146.

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

It is a super-2 number, since 2×64136066² = 8226869923912712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64136063) 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, 4001 + ... + 12011.

It is an arithmetic number, because the mean of its divisors is an integer number (12030018).

Almost surely, 2^64136066 is an apocalyptic number.

64136066 is a deficient number, since it is larger than the sum of its proper divisors (32104078).

64136066 is a wasteful number, since it uses less digits than its factorization.

64136066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12016.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 64136066 is about 8008.4996097896. The cubic root of 64136066 is about 400.2832701810.

The spelling of 64136066 in words is "sixty-four million, one hundred thirty-six thousand, sixty-six".