8940660560 has 80 divisors (see below), whose sum is σ = 23158049040. Its totient is φ = 3187322880.

The previous prime is 8940660559. The next prime is 8940660571. The reversal of 8940660560 is 650660498.

It can be written as a sum of positive squares in 8 ways, for example, as 2817911056 + 6122749504 = 53084^2 + 78248^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×8940660560² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118061 + ... + 178380.

It is an arithmetic number, because the mean of its divisors is an integer number (289475613).

Almost surely, 2^8940660560 is an apocalyptic number.

8940660560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8940660560 is an abundant number, since it is smaller than the sum of its proper divisors (14217388480).

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

8940660560 is a wasteful number, since it uses less digits than its factorization.

8940660560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296496 (or 296490 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 8940660560 is about 94555.0662841500. The cubic root of 8940660560 is about 2075.5022201401.

The spelling of 8940660560 in words is "eight billion, nine hundred forty million, six hundred sixty thousand, five hundred sixty".