143064406640 has 20 divisors (see below), whose sum is σ = 332624745624. Its totient is φ = 57225762624.

The previous prime is 143064406633. The next prime is 143064406649. The reversal of 143064406640 is 46604460341.

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

It is a junction number, because it is equal to n+sod(n) for n = 143064406594 and 143064406603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143064406649) 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, 894152462 + ... + 894152621.

Almost surely, 2^143064406640 is an apocalyptic number.

143064406640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143064406640 is an abundant number, since it is smaller than the sum of its proper divisors (189560338984).

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

143064406640 is a wasteful number, since it uses less digits than its factorization.

143064406640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788305096 (or 1788305090 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 143064406640 its reverse (46604460341), we get a palindrome (189668866981).

The spelling of 143064406640 in words is "one hundred forty-three billion, sixty-four million, four hundred six thousand, six hundred forty".