146621144809 has 32 divisors (see below), whose sum is σ = 157099106304. Its totient is φ = 136546819200.

The previous prime is 146621144807. The next prime is 146621144827. The reversal of 146621144809 is 908441126641.

It is a cyclic number.

It is not a de Polignac number, because 146621144809 - 2¹ = 146621144807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146621144807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42337612 + ... + 42341074.

It is an arithmetic number, because the mean of its divisors is an integer number (4909347072).

Almost surely, 2^146621144809 is an apocalyptic number.

It is an amenable number.

146621144809 is a deficient number, since it is larger than the sum of its proper divisors (10477961495).

146621144809 is a wasteful number, since it uses less digits than its factorization.

146621144809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 146621144809 in words is "one hundred forty-six billion, six hundred twenty-one million, one hundred forty-four thousand, eight hundred nine".