142321162506661 has 8 divisors (see below), whose sum is σ = 143983604816000. Its totient is φ = 140668192803600.

The previous prime is 142321162506581. The next prime is 142321162506667. The reversal of 142321162506661 is 166605261123241.

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

It is a cyclic number.

It is not a de Polignac number, because 142321162506661 - 2²³ = 142321154118053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321162506667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368121346 + ... + 2368181443.

It is an arithmetic number, because the mean of its divisors is an integer number (17997950602000).

Almost surely, 2^{142321162506661} is an apocalyptic number.

It is an amenable number.

142321162506661 is a deficient number, since it is larger than the sum of its proper divisors (1662442309339).

142321162506661 is a wasteful number, since it uses less digits than its factorization.

142321162506661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736303139.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 142321162506661 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-two million, five hundred six thousand, six hundred sixty-one".