142600630661 has 4 divisors (see below), whose sum is σ = 145291208652. Its totient is φ = 139910052672.

The previous prime is 142600630651. The next prime is 142600630673. The reversal of 142600630661 is 166036006241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 166036006241 = 7 ⋅23719429463.

It can be written as a sum of positive squares in 2 ways, for example, as 56043460225 + 86557170436 = 236735^2 + 294206^2 .

It is a cyclic number.

It is not a de Polignac number, because 142600630661 - 2¹⁰ = 142600629637 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 (142600630651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345288916 + ... + 1345289021.

It is an arithmetic number, because the mean of its divisors is an integer number (36322802163).

Almost surely, 2^142600630661 is an apocalyptic number.

It is an amenable number.

142600630661 is a deficient number, since it is larger than the sum of its proper divisors (2690577991).

142600630661 is an equidigital number, since it uses as much as digits as its factorization.

142600630661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690577990.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 142600630661 in words is "one hundred forty-two billion, six hundred million, six hundred thirty thousand, six hundred sixty-one".