7126665103 has 4 divisors (see below), whose sum is σ = 7501752760. Its totient is φ = 6751577448.

The previous prime is 7126665089. The next prime is 7126665107. The reversal of 7126665103 is 3015666217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7126665103 - 2²⁵ = 7093110671 is a prime.

It is a super-4 number, since 4×7126665103⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7126665107) 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, 187543800 + ... + 187543837.

It is an arithmetic number, because the mean of its divisors is an integer number (1875438190).

Almost surely, 2^7126665103 is an apocalyptic number.

7126665103 is a deficient number, since it is larger than the sum of its proper divisors (375087657).

7126665103 is a wasteful number, since it uses less digits than its factorization.

7126665103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375087656.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7126665103 is about 84419.5777234167. The cubic root of 7126665103 is about 1924.4004522268.

The spelling of 7126665103 in words is "seven billion, one hundred twenty-six million, six hundred sixty-five thousand, one hundred three".