146643042321 has 48 divisors (see below), whose sum is σ = 236345091840. Its totient is φ = 87071362560.

The previous prime is 146643042311. The next prime is 146643042341. The reversal of 146643042321 is 123240346641.

146643042321 is a `hidden beast` number, since 1 + 4 + 6 + 643 + 0 + 4 + 2 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 146643042321 - 2⁶ = 146643042257 is a prime.

It is a super-2 number, since 2×146643042321² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146643042311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2620591 + ... + 2675963.

It is an arithmetic number, because the mean of its divisors is an integer number (4923856080).

Almost surely, 2^146643042321 is an apocalyptic number.

It is an amenable number.

146643042321 is a deficient number, since it is larger than the sum of its proper divisors (89702049519).

146643042321 is a wasteful number, since it uses less digits than its factorization.

146643042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56326 (or 56323 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 146643042321 its reverse (123240346641), we get a palindrome (269883388962).

The spelling of 146643042321 in words is "one hundred forty-six billion, six hundred forty-three million, forty-two thousand, three hundred twenty-one".