142421601655299 has 4 divisors (see below), whose sum is σ = 189895468873736. Its totient is φ = 94947734436864.

The previous prime is 142421601655261. The next prime is 142421601655301. The reversal of 142421601655299 is 992556106124241.

It is a happy number.

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

It is not a de Polignac number, because 142421601655299 - 2⁷ = 142421601655171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142421601655219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23736933609214 + ... + 23736933609219.

It is an arithmetic number, because the mean of its divisors is an integer number (47473867218434).

Almost surely, 2^{142421601655299} is an apocalyptic number.

142421601655299 is a deficient number, since it is larger than the sum of its proper divisors (47473867218437).

142421601655299 is an equidigital number, since it uses as much as digits as its factorization.

142421601655299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47473867218436.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 142421601655299 in words is "one hundred forty-two trillion, four hundred twenty-one billion, six hundred one million, six hundred fifty-five thousand, two hundred ninety-nine".