134156656568 has 64 divisors (see below), whose sum is σ = 275266667520. Its totient is φ = 60790576000.

The previous prime is 134156656531. The next prime is 134156656577. The reversal of 134156656568 is 865656651431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45832721 + ... + 45835647.

It is an arithmetic number, because the mean of its divisors is an integer number (4301041680).

Almost surely, 2^134156656568 is an apocalyptic number.

It is an amenable number.

134156656568 is an abundant number, since it is smaller than the sum of its proper divisors (141110010952).

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

134156656568 is a wasteful number, since it uses less digits than its factorization.

134156656568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388 (or 4384 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 56.

The spelling of 134156656568 in words is "one hundred thirty-four billion, one hundred fifty-six million, six hundred fifty-six thousand, five hundred sixty-eight".