4166400129 has 4 divisors (see below), whose sum is σ = 5555200176. Its totient is φ = 2777600084.

The previous prime is 4166400097. The next prime is 4166400149. The reversal of 4166400129 is 9210046614.

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 4166400129 - 2⁵ = 4166400097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4166400129.

It is not an unprimeable number, because it can be changed into a prime (4166400149) 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, 694400019 + ... + 694400024.

It is an arithmetic number, because the mean of its divisors is an integer number (1388800044).

Almost surely, 2^4166400129 is an apocalyptic number.

It is an amenable number.

4166400129 is a deficient number, since it is larger than the sum of its proper divisors (1388800047).

4166400129 is a wasteful number, since it uses less digits than its factorization.

4166400129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388800046.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 4166400129 is about 64547.6578118835. The cubic root of 4166400129 is about 1609.1146617060.

The spelling of 4166400129 in words is "four billion, one hundred sixty-six million, four hundred thousand, one hundred twenty-nine".