69013391616 has 243 divisors, whose sum is σ = 215979401547. Its totient is φ = 21184450560.

The previous prime is 69013391599. The next prime is 69013391639. The reversal of 69013391616 is 61619331096.

It is a happy number.

The square root of 69013391616 is 262704.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 55206201600 + 13807190016 = 234960^2 + 117504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 163927086 + ... + 163927506.

Almost surely, 2^69013391616 is an apocalyptic number.

69013391616 is the 262704-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69013391616

69013391616 is an abundant number, since it is smaller than the sum of its proper divisors (146966009931).

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

69013391616 is an equidigital number, since it uses as much as digits as its factorization.

69013391616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The spelling of 69013391616 in words is "sixty-nine billion, thirteen million, three hundred ninety-one thousand, six hundred sixteen".