7051166137 has 4 divisors (see below), whose sum is σ = 7051334116. Its totient is φ = 7050998160.

The previous prime is 7051166123. The next prime is 7051166149. The reversal of 7051166137 is 7316611507.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 982132921 + 6069033216 = 31339^2 + 77904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7051166137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7051166096 and 7051166105.

It is not an unprimeable number, because it can be changed into a prime (7051166197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39403 + ... + 125119.

It is an arithmetic number, because the mean of its divisors is an integer number (1762833529).

Almost surely, 2^7051166137 is an apocalyptic number.

It is an amenable number.

7051166137 is a deficient number, since it is larger than the sum of its proper divisors (167979).

7051166137 is an equidigital number, since it uses as much as digits as its factorization.

7051166137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167978.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 7051166137 is about 83971.2220763757. Note that the first 3 decimals coincide. The cubic root of 7051166137 is about 1917.5806964074.

The spelling of 7051166137 in words is "seven billion, fifty-one million, one hundred sixty-six thousand, one hundred thirty-seven".