6601610522 has 16 divisors (see below), whose sum is σ = 10952361672. Its totient is φ = 2964548160.

The previous prime is 6601610497. The next prime is 6601610573. The reversal of 6601610522 is 2250161066.

It can be written as a sum of positive squares in 4 ways, for example, as 5844755401 + 756855121 = 76451^2 + 27511^2 .

It is a super-2 number, since 2×6601610522² = 87162522968362224968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3430229 + ... + 3432152.

Almost surely, 2^6601610522 is an apocalyptic number.

6601610522 is a deficient number, since it is larger than the sum of its proper divisors (4350751150).

6601610522 is a wasteful number, since it uses less digits than its factorization.

6601610522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862433.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6601610522 is about 81250.2955194626. The cubic root of 6601610522 is about 1875.9300177491.

Adding to 6601610522 its reverse (2250161066), we get a palindrome (8851771588).

The spelling of 6601610522 in words is "six billion, six hundred one million, six hundred ten thousand, five hundred twenty-two".