6601071541 has 2 divisors, whose sum is σ = 6601071542. Its totient is φ = 6601071540.

The previous prime is 6601071517. The next prime is 6601071623. The reversal of 6601071541 is 1451701066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6359424516 + 241647025 = 79746^2 + 15545^2 .

It is a cyclic number.

It is not a de Polignac number, because 6601071541 - 2⁵ = 6601071509 is a prime.

It is a super-2 number, since 2×6601071541² = 87148290978800229362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6601071511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300535770 + 3300535771.

It is an arithmetic number, because the mean of its divisors is an integer number (3300535771).

Almost surely, 2^6601071541 is an apocalyptic number.

It is an amenable number.

6601071541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6601071541 is an equidigital number, since it uses as much as digits as its factorization.

6601071541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 6601071541 is about 81246.9786576707. The cubic root of 6601071541 is about 1875.8789636338.

The spelling of 6601071541 in words is "six billion, six hundred one million, seventy-one thousand, five hundred forty-one".