146287945520 has 20 divisors (see below), whose sum is σ = 340119473520. Its totient is φ = 58515178176.

The previous prime is 146287945459. The next prime is 146287945523. The reversal of 146287945520 is 25549782641.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (146287945523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914299580 + ... + 914299739.

It is an arithmetic number, because the mean of its divisors is an integer number (17005973676).

Almost surely, 2^146287945520 is an apocalyptic number.

146287945520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146287945520 is an abundant number, since it is smaller than the sum of its proper divisors (193831528000).

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

146287945520 is a wasteful number, since it uses less digits than its factorization.

146287945520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828599332 (or 1828599326 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 146287945520 in words is "one hundred forty-six billion, two hundred eighty-seven million, nine hundred forty-five thousand, five hundred twenty".