144662667664 has 20 divisors (see below), whose sum is σ = 280298738304. Its totient is φ = 72327509408.

The previous prime is 144662667661. The next prime is 144662667671. The reversal of 144662667664 is 466766266441.

It is a super-2 number, since 2×144662667664² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144662667599 and 144662667608.

It is not an unprimeable number, because it can be changed into a prime (144662667661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86469 + ... + 544795.

Almost surely, 2^144662667664 is an apocalyptic number.

It is an amenable number.

144662667664 is a deficient number, since it is larger than the sum of its proper divisors (135636070640).

144662667664 is a wasteful number, since it uses less digits than its factorization.

144662667664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478062 (or 478056 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 58.

The spelling of 144662667664 in words is "one hundred forty-four billion, six hundred sixty-two million, six hundred sixty-seven thousand, six hundred sixty-four".