4158929661 has 4 divisors (see below), whose sum is σ = 5545239552. Its totient is φ = 2772619772.

The previous prime is 4158929609. The next prime is 4158929681. The reversal of 4158929661 is 1669298514.

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 4158929661 - 2⁶ = 4158929597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4158929681) 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, 693154941 + ... + 693154946.

It is an arithmetic number, because the mean of its divisors is an integer number (1386309888).

Almost surely, 2^4158929661 is an apocalyptic number.

It is an amenable number.

4158929661 is a deficient number, since it is larger than the sum of its proper divisors (1386309891).

4158929661 is a wasteful number, since it uses less digits than its factorization.

4158929661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386309890.

The product of its digits is 933120, while the sum is 51.

The square root of 4158929661 is about 64489.7640017391. The cubic root of 4158929661 is about 1608.1523576430.

The spelling of 4158929661 in words is "four billion, one hundred fifty-eight million, nine hundred twenty-nine thousand, six hundred sixty-one".