4166342991 has 24 divisors (see below), whose sum is σ = 6216712320. Its totient is φ = 2686003200.

The previous prime is 4166342987. The next prime is 4166343011. The reversal of 4166342991 is 1992436614.

4166342991 is a `hidden beast` number, since 4 + 1 + 6 + 634 + 2 + 9 + 9 + 1 = 666.

It is not a de Polignac number, because 4166342991 - 2² = 4166342987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4166342491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444271 + ... + 453551.

It is an arithmetic number, because the mean of its divisors is an integer number (259029680).

Almost surely, 2^4166342991 is an apocalyptic number.

4166342991 is a deficient number, since it is larger than the sum of its proper divisors (2050369329).

4166342991 is a wasteful number, since it uses less digits than its factorization.

4166342991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927 (or 10924 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 4166342991 is about 64547.2152071644. The cubic root of 4166342991 is about 1609.1073058744.

The spelling of 4166342991 in words is "four billion, one hundred sixty-six million, three hundred forty-two thousand, nine hundred ninety-one".