3163662561 has 8 divisors (see below), whose sum is σ = 4354288384. Its totient is φ = 2041072560.

The previous prime is 3163662559. The next prime is 3163662563. The reversal of 3163662561 is 1652663613.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3163662559) and next prime (3163662563).

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

It is not a de Polignac number, because 3163662561 - 2¹ = 3163662559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3163662563) 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, 17008846 + ... + 17009031.

It is an arithmetic number, because the mean of its divisors is an integer number (544286048).

Almost surely, 2^3163662561 is an apocalyptic number.

3163662561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3163662561 is a deficient number, since it is larger than the sum of its proper divisors (1190625823).

3163662561 is a wasteful number, since it uses less digits than its factorization.

3163662561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34017911.

The product of its digits is 116640, while the sum is 39.

The square root of 3163662561 is about 56246.4448743207. Note that the first 3 decimals coincide. The cubic root of 3163662561 is about 1468.0135076912.

The spelling of 3163662561 in words is "three billion, one hundred sixty-three million, six hundred sixty-two thousand, five hundred sixty-one".