64566142 has 8 divisors (see below), whose sum is σ = 101946600. Its totient is φ = 30583944.

The previous prime is 64566133. The next prime is 64566157. The reversal of 64566142 is 24166546.

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

It is a junction number, because it is equal to n+sod(n) for n = 64566098 and 64566107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849517 + ... + 849592.

It is an arithmetic number, because the mean of its divisors is an integer number (12743325).

Almost surely, 2^64566142 is an apocalyptic number.

64566142 is a deficient number, since it is larger than the sum of its proper divisors (37380458).

64566142 is a wasteful number, since it uses less digits than its factorization.

64566142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699130.

The product of its digits is 34560, while the sum is 34.

The square root of 64566142 is about 8035.3059680388. The cubic root of 64566142 is about 401.1760016619.

The spelling of 64566142 in words is "sixty-four million, five hundred sixty-six thousand, one hundred forty-two".