7216556126 has 8 divisors (see below), whose sum is σ = 11657513784. Its totient is φ = 3330718200.

The previous prime is 7216556119. The next prime is 7216556143. The reversal of 7216556126 is 6216556127.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138779900 + ... + 138779951.

It is an arithmetic number, because the mean of its divisors is an integer number (1457189223).

Almost surely, 2^7216556126 is an apocalyptic number.

7216556126 is a deficient number, since it is larger than the sum of its proper divisors (4440957658).

7216556126 is a wasteful number, since it uses less digits than its factorization.

7216556126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277559866.

The product of its digits is 151200, while the sum is 41.

The square root of 7216556126 is about 84950.3156321388. The cubic root of 7216556126 is about 1932.4577069346.

Subtracting from 7216556126 its reverse (6216556127), we obtain a palindrome (999999999).

The spelling of 7216556126 in words is "seven billion, two hundred sixteen million, five hundred fifty-six thousand, one hundred twenty-six".