69329939616 has 144 divisors (see below), whose sum is σ = 226944244800. Its totient is φ = 19665967104.

The previous prime is 69329939603. The next prime is 69329939621. The reversal of 69329939616 is 61693992396.

69329939616 is a `hidden beast` number, since 6 + 9 + 3 + 2 + 9 + 9 + 3 + 9 + 616 = 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 (63).

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 156520 + ... + 403928.

It is an arithmetic number, because the mean of its divisors is an integer number (1576001700).

Almost surely, 2^69329939616 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 69329939616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113472122400).

69329939616 is an abundant number, since it is smaller than the sum of its proper divisors (157614305184).

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

69329939616 is a wasteful number, since it uses less digits than its factorization.

69329939616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247571 (or 247560 counting only the distinct ones).

The product of its digits is 25509168, while the sum is 63.

The spelling of 69329939616 in words is "sixty-nine billion, three hundred twenty-nine million, nine hundred thirty-nine thousand, six hundred sixteen".