201675564 has 18 divisors (see below), whose sum is σ = 509791100. Its totient is φ = 67225176.

The previous prime is 201675559. The next prime is 201675581. The reversal of 201675564 is 465576102.

It is a happy number.

201675564 is a `hidden beast` number, since 20 + 1 + 6 + 75 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×201675564² = 81346066229436192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5602099 = 201675564 / (2 + 0 + 1 + 6 + 7 + 5 + 5 + 6 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2801014 + ... + 2801085.

Almost surely, 2^201675564 is an apocalyptic number.

It is an amenable number.

201675564 is an abundant number, since it is smaller than the sum of its proper divisors (308115536).

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

201675564 is a wasteful number, since it uses less digits than its factorization.

201675564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602109 (or 5602104 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 201675564 is about 14201.2521983098. The cubic root of 201675564 is about 586.4321343582.

The spelling of 201675564 in words is "two hundred one million, six hundred seventy-five thousand, five hundred sixty-four".