64666046 has 4 divisors (see below), whose sum is σ = 96999072. Its totient is φ = 32333022.

The previous prime is 64666033. The next prime is 64666081. The reversal of 64666046 is 64066646.

It is a semiprime because it is the product of two primes.

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, 16166510 + ... + 16166513.

It is an arithmetic number, because the mean of its divisors is an integer number (24249768).

Almost surely, 2^64666046 is an apocalyptic number.

64666046 is a deficient number, since it is larger than the sum of its proper divisors (32333026).

64666046 is a wasteful number, since it uses less digits than its factorization.

64666046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32333025.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 64666046 is about 8041.5201299257. The cubic root of 64666046 is about 401.3828099165.

The spelling of 64666046 in words is "sixty-four million, six hundred sixty-six thousand, forty-six".