146643656 has 8 divisors (see below), whose sum is σ = 274956870. Its totient is φ = 73321824.

The previous prime is 146643611. The next prime is 146643659. The reversal of 146643656 is 656346641.

146643656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 117375556 + 29268100 = 10834^2 + 5410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×146643656³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (146643659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9165221 + ... + 9165236.

Almost surely, 2^146643656 is an apocalyptic number.

It is an amenable number.

146643656 is a deficient number, since it is larger than the sum of its proper divisors (128313214).

146643656 is a wasteful number, since it uses less digits than its factorization.

146643656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18330463 (or 18330459 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 146643656 is about 12109.6513574917. The cubic root of 146643656 is about 527.3364119165.

The spelling of 146643656 in words is "one hundred forty-six million, six hundred forty-three thousand, six hundred fifty-six".