142620166642 has 8 divisors (see below), whose sum is σ = 215038697436. Its totient is φ = 70940600832.

The previous prime is 142620166631. The next prime is 142620166643. The reversal of 142620166642 is 246661026241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141533211681 + 1086954961 = 376209^2 + 32969^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 142620166595 and 142620166604.

It is not an unprimeable number, because it can be changed into a prime (142620166643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184740763 + ... + 184741534.

Almost surely, 2^142620166642 is an apocalyptic number.

142620166642 is a deficient number, since it is larger than the sum of its proper divisors (72418530794).

142620166642 is a wasteful number, since it uses less digits than its factorization.

142620166642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369482492.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 142620166642 in words is "one hundred forty-two billion, six hundred twenty million, one hundred sixty-six thousand, six hundred forty-two".