201652461666 has 24 divisors (see below), whose sum is σ = 439807140864. Its totient is φ = 66772337400.

The previous prime is 201652461557. The next prime is 201652461671. The reversal of 201652461666 is 666164256102.

201652461666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37093026 + ... + 37098461.

It is an arithmetic number, because the mean of its divisors is an integer number (18325297536).

Almost surely, 2^201652461666 is an apocalyptic number.

201652461666 is an abundant number, since it is smaller than the sum of its proper divisors (238154679198).

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

201652461666 is a wasteful number, since it uses less digits than its factorization.

201652461666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74191646 (or 74191643 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 201652461666 in words is "two hundred one billion, six hundred fifty-two million, four hundred sixty-one thousand, six hundred sixty-six".