6729166401 has 8 divisors (see below), whose sum is σ = 9001072704. Its totient is φ = 4471685520.

The previous prime is 6729166399. The next prime is 6729166417. The reversal of 6729166401 is 1046619276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6729166401 - 2¹ = 6729166399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6729161401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3605266 + ... + 3607131.

It is an arithmetic number, because the mean of its divisors is an integer number (1125134088).

Almost surely, 2^6729166401 is an apocalyptic number.

It is an amenable number.

6729166401 is a deficient number, since it is larger than the sum of its proper divisors (2271906303).

6729166401 is a wasteful number, since it uses less digits than its factorization.

6729166401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212711.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6729166401 is about 82031.4963962014. The cubic root of 6729166401 is about 1887.9352236204.

The spelling of 6729166401 in words is "six billion, seven hundred twenty-nine million, one hundred sixty-six thousand, four hundred one".