7166139801 has 16 divisors (see below), whose sum is σ = 9900528960. Its totient is φ = 4605128640.

The previous prime is 7166139797. The next prime is 7166139809. The reversal of 7166139801 is 1089316617.

It is not a de Polignac number, because 7166139801 - 2² = 7166139797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7166139809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13855 + ... + 120516.

It is an arithmetic number, because the mean of its divisors is an integer number (618783060).

Almost surely, 2^7166139801 is an apocalyptic number.

It is an amenable number.

7166139801 is a deficient number, since it is larger than the sum of its proper divisors (2734389159).

7166139801 is a wasteful number, since it uses less digits than its factorization.

7166139801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135016.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 7166139801 is about 84653.0554735031. The cubic root of 7166139801 is about 1927.9470058299.

The spelling of 7166139801 in words is "seven billion, one hundred sixty-six million, one hundred thirty-nine thousand, eight hundred one".