134140231566 has 24 divisors (see below), whose sum is σ = 317058729624. Its totient is φ = 40648554960.

The previous prime is 134140231549. The next prime is 134140231579. The reversal of 134140231566 is 665132041431.

134140231566 is a `hidden beast` number, since 1 + 3 + 414 + 0 + 231 + 5 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134140231566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338737761 + ... + 338738156.

It is an arithmetic number, because the mean of its divisors is an integer number (13210780401).

Almost surely, 2^134140231566 is an apocalyptic number.

134140231566 is an abundant number, since it is smaller than the sum of its proper divisors (182918498058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134140231566 is a wasteful number, since it uses less digits than its factorization.

134140231566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677475936 (or 677475933 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 134140231566 its reverse (665132041431), we get a palindrome (799272272997).

The spelling of 134140231566 in words is "one hundred thirty-four billion, one hundred forty million, two hundred thirty-one thousand, five hundred sixty-six".