798153664 has 112 divisors (see below), whose sum is σ = 1989734400. Its totient is φ = 308597760.

The previous prime is 798153649. The next prime is 798153667. The reversal of 798153664 is 466351897.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798153667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733729 + ... + 734815.

Almost surely, 2^798153664 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 798153664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994867200).

798153664 is an abundant number, since it is smaller than the sum of its proper divisors (1191580736).

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

798153664 is a wasteful number, since it uses less digits than its factorization.

798153664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1256 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 798153664 is about 28251.6134760477. The cubic root of 798153664 is about 927.6030555615.

The spelling of 798153664 in words is "seven hundred ninety-eight million, one hundred fifty-three thousand, six hundred sixty-four".