142401642566 has 4 divisors (see below), whose sum is σ = 213602463852. Its totient is φ = 71200821282.

The previous prime is 142401642547. The next prime is 142401642583. The reversal of 142401642566 is 665246104241.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35600410640 + ... + 35600410643.

It is an arithmetic number, because the mean of its divisors is an integer number (53400615963).

Almost surely, 2^142401642566 is an apocalyptic number.

142401642566 is a deficient number, since it is larger than the sum of its proper divisors (71200821286).

142401642566 is an equidigital number, since it uses as much as digits as its factorization.

142401642566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71200821285.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 142401642566 in words is "one hundred forty-two billion, four hundred one million, six hundred forty-two thousand, five hundred sixty-six".