142232450661 has 48 divisors (see below), whose sum is σ = 243576837504. Its totient is φ = 81247567104.

The previous prime is 142232450651. The next prime is 142232450671. The reversal of 142232450661 is 166054232241.

142232450661 is a `hidden beast` number, since 142 + 2 + 3 + 2 + 4 + 506 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (142232450651) and next prime (142232450671).

It is not a de Polignac number, because 142232450661 - 2⁹ = 142232450149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142232450641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5527321 + ... + 5552993.

It is an arithmetic number, because the mean of its divisors is an integer number (5074517448).

Almost surely, 2^142232450661 is an apocalyptic number.

It is an amenable number.

142232450661 is a deficient number, since it is larger than the sum of its proper divisors (101344386843).

142232450661 is an equidigital number, since it uses as much as digits as its factorization.

142232450661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28952 (or 28940 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 142232450661 in words is "one hundred forty-two billion, two hundred thirty-two million, four hundred fifty thousand, six hundred sixty-one".