899163652608 has 640 divisors, whose sum is σ = 2966097657600. Its totient is φ = 267204427776.

The previous prime is 899163652561. The next prime is 899163652733. The reversal of 899163652608 is 806256361998.

899163652608 is a `hidden beast` number, since 8 + 9 + 9 + 1 + 6 + 365 + 260 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 638156608 + ... + 638158016.

It is an arithmetic number, because the mean of its divisors is an integer number (4634527590).

Almost surely, 2^899163652608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899163652608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483048828800).

899163652608 is an abundant number, since it is smaller than the sum of its proper divisors (2066934004992).

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

899163652608 is a wasteful number, since it uses less digits than its factorization.

899163652608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 899163652608 in words is "eight hundred ninety-nine billion, one hundred sixty-three million, six hundred fifty-two thousand, six hundred eight".