142656221043 has 48 divisors (see below), whose sum is σ = 239471554816. Its totient is φ = 80146376640.

The previous prime is 142656221003. The next prime is 142656221053. The reversal of 142656221043 is 340122656241.

142656221043 is a `hidden beast` number, since 1 + 4 + 26 + 5 + 622 + 1 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 142656221043 - 2⁸ = 142656220787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142656220989 and 142656221007.

It is not an unprimeable number, because it can be changed into a prime (142656221003) 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, 2175273 + ... + 2239893.

Almost surely, 2^142656221043 is an apocalyptic number.

142656221043 is a deficient number, since it is larger than the sum of its proper divisors (96815333773).

142656221043 is a wasteful number, since it uses less digits than its factorization.

142656221043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65224 (or 65221 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 142656221043 its reverse (340122656241), we get a palindrome (482778877284).

The spelling of 142656221043 in words is "one hundred forty-two billion, six hundred fifty-six million, two hundred twenty-one thousand, forty-three".