144621163643 has 8 divisors (see below), whose sum is σ = 157794067200. Its totient is φ = 131452514280.

The previous prime is 144621163627. The next prime is 144621163669. The reversal of 144621163643 is 346361126441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144621163643 - 2⁴ = 144621163627 is a prime.

It is a super-3 number, since 3×144621163643³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144621163643.

It is not an unprimeable number, because it can be changed into a prime (144621160643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992255 + ... + 1128632.

It is an arithmetic number, because the mean of its divisors is an integer number (19724258400).

Almost surely, 2^144621163643 is an apocalyptic number.

144621163643 is a deficient number, since it is larger than the sum of its proper divisors (13172903557).

144621163643 is a wasteful number, since it uses less digits than its factorization.

144621163643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127097.

The product of its digits is 248832, while the sum is 41.

The spelling of 144621163643 in words is "one hundred forty-four billion, six hundred twenty-one million, one hundred sixty-three thousand, six hundred forty-three".