201466115550 has 144 divisors (see below), whose sum is σ = 635316113952. Its totient is φ = 44804793600.

The previous prime is 201466115519. The next prime is 201466115561. The reversal of 201466115550 is 55511664102.

201466115550 is a `hidden beast` number, since 2 + 0 + 1 + 46 + 61 + 1 + 5 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 747741 + ... + 980840.

It is an arithmetic number, because the mean of its divisors is an integer number (4411917458).

Almost surely, 2^201466115550 is an apocalyptic number.

201466115550 is an abundant number, since it is smaller than the sum of its proper divisors (433849998402).

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

201466115550 is a wasteful number, since it uses less digits than its factorization.

201466115550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728643 (or 1728635 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 201466115550 its reverse (55511664102), we get a palindrome (256977779652).

The spelling of 201466115550 in words is "two hundred one billion, four hundred sixty-six million, one hundred fifteen thousand, five hundred fifty".