9141141661 has 4 divisors (see below), whose sum is σ = 9622254400. Its totient is φ = 8660028924.

The previous prime is 9141141629. The next prime is 9141141683. The reversal of 9141141661 is 1661411419.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1661411419 = 251 ⋅6619169.

It is not a de Polignac number, because 9141141661 - 2⁵ = 9141141629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9141141601) 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, 240556341 + ... + 240556378.

It is an arithmetic number, because the mean of its divisors is an integer number (2405563600).

Almost surely, 2^9141141661 is an apocalyptic number.

It is an amenable number.

9141141661 is a deficient number, since it is larger than the sum of its proper divisors (481112739).

9141141661 is a wasteful number, since it uses less digits than its factorization.

9141141661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481112738.

The product of its digits is 5184, while the sum is 34.

The square root of 9141141661 is about 95609.3178565771. The cubic root of 9141141661 is about 2090.9010454403.

The spelling of 9141141661 in words is "nine billion, one hundred forty-one million, one hundred forty-one thousand, six hundred sixty-one".