1201164663 has 8 divisors (see below), whose sum is σ = 1603163248. Its totient is φ = 799971264.

The previous prime is 1201164661. The next prime is 1201164721. The reversal of 1201164663 is 3664611021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201164663 - 2¹ = 1201164661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201164663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201164661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197806 + ... + 203787.

It is an arithmetic number, because the mean of its divisors is an integer number (200395406).

Almost surely, 2^1201164663 is an apocalyptic number.

1201164663 is a deficient number, since it is larger than the sum of its proper divisors (401998585).

1201164663 is an equidigital number, since it uses as much as digits as its factorization.

1201164663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402593.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1201164663 is about 34657.8225369108. The cubic root of 1201164663 is about 1063.0022466646.

Adding to 1201164663 its reverse (3664611021), we get a palindrome (4865775684).

The spelling of 1201164663 in words is "one billion, two hundred one million, one hundred sixty-four thousand, six hundred sixty-three".