7221136576 has 14 divisors (see below), whose sum is σ = 14329443020. Its totient is φ = 3610568256.

The previous prime is 7221136553. The next prime is 7221136577. The reversal of 7221136576 is 6756311227.

It is not an unprimeable number, because it can be changed into a prime (7221136577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56415066 + ... + 56415193.

Almost surely, 2^7221136576 is an apocalyptic number.

It is an amenable number.

7221136576 is a deficient number, since it is larger than the sum of its proper divisors (7108306444).

7221136576 is a wasteful number, since it uses less digits than its factorization.

7221136576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112830271 (or 112830261 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 7221136576 is about 84977.2709375866. The cubic root of 7221136576 is about 1932.8664731882.

The spelling of 7221136576 in words is "seven billion, two hundred twenty-one million, one hundred thirty-six thousand, five hundred seventy-six".