1416016561 has 4 divisors (see below), whose sum is σ = 1416140272. Its totient is φ = 1415892852.

The previous prime is 1416016559. The next prime is 1416016571. The reversal of 1416016561 is 1656106141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1416016561 - 2¹ = 1416016559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1416016541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42711 + ... + 68236.

It is an arithmetic number, because the mean of its divisors is an integer number (354035068).

Almost surely, 2^1416016561 is an apocalyptic number.

It is an amenable number.

1416016561 is a deficient number, since it is larger than the sum of its proper divisors (123711).

1416016561 is a wasteful number, since it uses less digits than its factorization.

1416016561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123710.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1416016561 is about 37629.9954956149. The cubic root of 1416016561 is about 1122.9388593888.

The spelling of 1416016561 in words is "one billion, four hundred sixteen million, sixteen thousand, five hundred sixty-one".