16634955744 has 144 divisors (see below), whose sum is σ = 53517784320. Its totient is φ = 5040869760.

The previous prime is 16634955737. The next prime is 16634955761. The reversal of 16634955744 is 44755943661.

It is a happy number.

16634955744 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 49 + 557 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 23 ways as a sum of consecutive naturals, for example, 11704 + ... + 182775.

It is an arithmetic number, because the mean of its divisors is an integer number (371651280).

Almost surely, 2^16634955744 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 16634955744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26758892160).

16634955744 is an abundant number, since it is smaller than the sum of its proper divisors (36882828576).

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

16634955744 is a wasteful number, since it uses less digits than its factorization.

16634955744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194515 (or 194495 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 16634955744 in words is "sixteen billion, six hundred thirty-four million, nine hundred fifty-five thousand, seven hundred forty-four".