142610664421 has 8 divisors (see below), whose sum is σ = 151475871960. Its totient is φ = 133798384128.

The previous prime is 142610664419. The next prime is 142610664463. The reversal of 142610664421 is 124466016241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44632900225 + 97977764196 = 211265^2 + 313014^2 .

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

It is not a de Polignac number, because 142610664421 - 2¹ = 142610664419 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 (142610664481) 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, 13226256 + ... + 13237033.

It is an arithmetic number, because the mean of its divisors is an integer number (18934483995).

Almost surely, 2^142610664421 is an apocalyptic number.

It is an amenable number.

142610664421 is a deficient number, since it is larger than the sum of its proper divisors (8865207539).

142610664421 is a wasteful number, since it uses less digits than its factorization.

142610664421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26463623.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 142610664421 in words is "one hundred forty-two billion, six hundred ten million, six hundred sixty-four thousand, four hundred twenty-one".