146420441556 has 12 divisors (see below), whose sum is σ = 341647696992. Its totient is φ = 48806813848.

The previous prime is 146420441509. The next prime is 146420441591. The reversal of 146420441556 is 655144024641.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×146420441556² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6100851720 + ... + 6100851743.

It is an arithmetic number, because the mean of its divisors is an integer number (28470641416).

Almost surely, 2^146420441556 is an apocalyptic number.

It is an amenable number.

146420441556 is an abundant number, since it is smaller than the sum of its proper divisors (195227255436).

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

146420441556 is a wasteful number, since it uses less digits than its factorization.

146420441556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201703470 (or 12201703468 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 146420441556 in words is "one hundred forty-six billion, four hundred twenty million, four hundred forty-one thousand, five hundred fifty-six".