142620166644 has 24 divisors (see below), whose sum is σ = 333371488800. Its totient is φ = 47455612704.

The previous prime is 142620166643. The next prime is 142620166651. The reversal of 142620166644 is 446661026241.

It is a junction number, because it is equal to n+sod(n) for n = 142620166596 and 142620166605.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10548319 + ... + 10561830.

It is an arithmetic number, because the mean of its divisors is an integer number (13890478700).

Almost surely, 2^142620166644 is an apocalyptic number.

It is an amenable number.

142620166644 is an abundant number, since it is smaller than the sum of its proper divisors (190751322156).

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

142620166644 is a wasteful number, since it uses less digits than its factorization.

142620166644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21110719 (or 21110717 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 142620166644 in words is "one hundred forty-two billion, six hundred twenty million, one hundred sixty-six thousand, six hundred forty-four".