3515566656 has 224 divisors, whose sum is σ = 11553464320. Its totient is φ = 920678400.

The previous prime is 3515566619. The next prime is 3515566657. The reversal of 3515566656 is 6566655153.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (3515566657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789396 + ... + 793836.

Almost surely, 2^3515566656 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 3515566656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5776732160).

3515566656 is an abundant number, since it is smaller than the sum of its proper divisors (8037897664).

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

3515566656 is a wasteful number, since it uses less digits than its factorization.

3515566656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513 (or 4503 counting only the distinct ones).

The product of its digits is 2430000, while the sum is 48.

The square root of 3515566656 is about 59292.2141263084. The cubic root of 3515566656 is about 1520.5420873507.

The spelling of 3515566656 in words is "three billion, five hundred fifteen million, five hundred sixty-six thousand, six hundred fifty-six".