142032506640 has 80 divisors (see below), whose sum is σ = 446502243456. Its totient is φ = 37341875200.

The previous prime is 142032506621. The next prime is 142032506641. The reversal of 142032506640 is 46605230241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (142032506641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4150581 + ... + 4184660.

Almost surely, 2^142032506640 is an apocalyptic number.

142032506640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142032506640 is an abundant number, since it is smaller than the sum of its proper divisors (304469736816).

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

142032506640 is a wasteful number, since it uses less digits than its factorization.

142032506640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335328 (or 8335322 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 142032506640 its reverse (46605230241), we get a palindrome (188637736881).

The spelling of 142032506640 in words is "one hundred forty-two billion, thirty-two million, five hundred six thousand, six hundred forty".