142345226661 has 16 divisors (see below), whose sum is σ = 208558905408. Its totient is φ = 85640124800.

The previous prime is 142345226609. The next prime is 142345226701. The reversal of 142345226661 is 166622543241.

It is a happy number.

It is not a de Polignac number, because 142345226661 - 2⁷ = 142345226533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142345226561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15738150 + ... + 15747191.

It is an arithmetic number, because the mean of its divisors is an integer number (13034931588).

Almost surely, 2^142345226661 is an apocalyptic number.

142345226661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142345226661 is a deficient number, since it is larger than the sum of its proper divisors (66213678747).

142345226661 is a wasteful number, since it uses less digits than its factorization.

142345226661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31485492.

The product of its digits is 414720, while the sum is 42.

The spelling of 142345226661 in words is "one hundred forty-two billion, three hundred forty-five million, two hundred twenty-six thousand, six hundred sixty-one".