9069720660 has 1440 divisors, whose sum is σ = 42046760448. Its totient is φ = 1602478080.

The previous prime is 9069720641. The next prime is 9069720683. The reversal of 9069720660 is 660279609.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 192972757 + ... + 192972803.

Almost surely, 2^9069720660 is an apocalyptic number.

9069720660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9069720660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21023380224).

9069720660 is an abundant number, since it is smaller than the sum of its proper divisors (32977039788).

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

9069720660 is a wasteful number, since it uses less digits than its factorization.

9069720660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 9069720660 is about 95235.0810363492. The cubic root of 9069720660 is about 2085.4413019623.

The spelling of 9069720660 in words is "nine billion, sixty-nine million, seven hundred twenty thousand, six hundred sixty".