134666250261 has 16 divisors (see below), whose sum is σ = 190728390528. Its totient is φ = 84224768000.

The previous prime is 134666250247. The next prime is 134666250263. The reversal of 134666250261 is 162052666431.

It is a cyclic number.

It is not a de Polignac number, because 134666250261 - 2⁷ = 134666250133 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134666250263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4229340 + ... + 4261061.

It is an arithmetic number, because the mean of its divisors is an integer number (11920524408).

Almost surely, 2^134666250261 is an apocalyptic number.

It is an amenable number.

134666250261 is a deficient number, since it is larger than the sum of its proper divisors (56062140267).

134666250261 is a wasteful number, since it uses less digits than its factorization.

134666250261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490732.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 134666250261 in words is "one hundred thirty-four billion, six hundred sixty-six million, two hundred fifty thousand, two hundred sixty-one".