16398849948 has 96 divisors (see below), whose sum is σ = 43204772352. Its totient is φ = 4803321600.

The previous prime is 16398849937. The next prime is 16398849959. The reversal of 16398849948 is 84994889361.

It is an interprime number because it is at equal distance from previous prime (16398849937) and next prime (16398849959).

It is a super-3 number, since 3×16398849948³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 746238 + ... + 767898.

It is an arithmetic number, because the mean of its divisors is an integer number (450049712).

Almost surely, 2^16398849948 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 16398849948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21602386176).

16398849948 is an abundant number, since it is smaller than the sum of its proper divisors (26805922404).

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

16398849948 is a wasteful number, since it uses less digits than its factorization.

16398849948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21915 (or 21913 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 69.

The spelling of 16398849948 in words is "sixteen billion, three hundred ninety-eight million, eight hundred forty-nine thousand, nine hundred forty-eight".