146066778 has 48 divisors (see below), whose sum is σ = 371812896. Its totient is φ = 40857120.

The previous prime is 146066693. The next prime is 146066783. The reversal of 146066778 is 877660641.

146066778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25800 + ... + 30947.

It is an arithmetic number, because the mean of its divisors is an integer number (7746102).

Almost surely, 2^146066778 is an apocalyptic number.

146066778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

146066778 is an abundant number, since it is smaller than the sum of its proper divisors (225746118).

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

146066778 is a wasteful number, since it uses less digits than its factorization.

146066778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56779 (or 56776 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 146066778 is about 12085.8089509970. The cubic root of 146066778 is about 526.6440111140.

The spelling of 146066778 in words is "one hundred forty-six million, sixty-six thousand, seven hundred seventy-eight".