133677656342 has 4 divisors (see below), whose sum is σ = 200516484516. Its totient is φ = 66838828170.

The previous prime is 133677656341. The next prime is 133677656369. The reversal of 133677656342 is 243656776331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243656776331 = 25163 ⋅9683137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133677656341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33419414084 + ... + 33419414087.

It is an arithmetic number, because the mean of its divisors is an integer number (50129121129).

Almost surely, 2^133677656342 is an apocalyptic number.

133677656342 is a deficient number, since it is larger than the sum of its proper divisors (66838828174).

133677656342 is an equidigital number, since it uses as much as digits as its factorization.

133677656342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66838828173.

The product of its digits is 11430720, while the sum is 53.

The spelling of 133677656342 in words is "one hundred thirty-three billion, six hundred seventy-seven million, six hundred fifty-six thousand, three hundred forty-two".