4016998561 has 6 divisors (see below), whose sum is σ = 4267192550. Its totient is φ = 3780704256.

The previous prime is 4016998537. The next prime is 4016998567. The reversal of 4016998561 is 1658996104.

It can be written as a sum of positive squares in 3 ways, for example, as 612859536 + 3404139025 = 24756^2 + 58345^2 .

It is not a de Polignac number, because 4016998561 - 2⁵ = 4016998529 is a prime.

It is a super-2 number, since 2×4016998561² = 32272554878152141442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4016998567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6949536 + ... + 6950113.

Almost surely, 2^4016998561 is an apocalyptic number.

It is an amenable number.

4016998561 is a deficient number, since it is larger than the sum of its proper divisors (250193989).

4016998561 is a wasteful number, since it uses less digits than its factorization.

4016998561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13899683 (or 13899666 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 4016998561 is about 63379.7961577662. The cubic root of 4016998561 is about 1589.6465019818.

The spelling of 4016998561 in words is "four billion, sixteen million, nine hundred ninety-eight thousand, five hundred sixty-one".