4055166691 has 2 divisors, whose sum is σ = 4055166692. Its totient is φ = 4055166690.

The previous prime is 4055166683. The next prime is 4055166743. The reversal of 4055166691 is 1966615504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4055166691 - 2³ = 4055166683 is a prime.

It is not a weakly prime, because it can be changed into another prime (4055166611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027583345 + 2027583346.

It is an arithmetic number, because the mean of its divisors is an integer number (2027583346).

Almost surely, 2^4055166691 is an apocalyptic number.

4055166691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4055166691 is an equidigital number, since it uses as much as digits as its factorization.

4055166691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 4055166691 is about 63680.1907267872. The cubic root of 4055166691 is about 1594.6653964107.

The spelling of 4055166691 in words is "four billion, fifty-five million, one hundred sixty-six thousand, six hundred ninety-one".