201666461334 has 64 divisors (see below), whose sum is σ = 436156056000. Its totient is φ = 61794749952.

The previous prime is 201666461333. The next prime is 201666461387. The reversal of 201666461334 is 433164666102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201666461333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46368592 + ... + 46372940.

It is an arithmetic number, because the mean of its divisors is an integer number (6814938375).

Almost surely, 2^201666461334 is an apocalyptic number.

201666461334 is an abundant number, since it is smaller than the sum of its proper divisors (234489594666).

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

201666461334 is a wasteful number, since it uses less digits than its factorization.

201666461334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 201666461334 in words is "two hundred one billion, six hundred sixty-six million, four hundred sixty-one thousand, three hundred thirty-four".