145896666 has 8 divisors (see below), whose sum is σ = 291793344. Its totient is φ = 48632220.

The previous prime is 145896623. The next prime is 145896677. The reversal of 145896666 is 666698541.

It is a happy number.

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

145896666 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12158050 + ... + 12158061.

It is an arithmetic number, because the mean of its divisors is an integer number (36474168).

Almost surely, 2^145896666 is an apocalyptic number.

145896666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145896666 is a wasteful number, since it uses less digits than its factorization.

145896666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24316116.

The product of its digits is 1866240, while the sum is 51.

The square root of 145896666 is about 12078.7692253805. The cubic root of 145896666 is about 526.4394853289.

The spelling of 145896666 in words is "one hundred forty-five million, eight hundred ninety-six thousand, six hundred sixty-six".