65442670 has 16 divisors (see below), whose sum is σ = 118136880. Its totient is φ = 26101504.

The previous prime is 65442649. The next prime is 65442701. The reversal of 65442670 is 7624456.

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, 5740 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (7383555).

Almost surely, 2^65442670 is an apocalyptic number.

65442670 is a deficient number, since it is larger than the sum of its proper divisors (52694210).

65442670 is a wasteful number, since it uses less digits than its factorization.

65442670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18899.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 65442670 is about 8089.6643935333. The cubic root of 65442670 is about 402.9832576214.

The spelling of 65442670 in words is "sixty-five million, four hundred forty-two thousand, six hundred seventy".