7222667657 has 8 divisors (see below), whose sum is σ = 7609798560. Its totient is φ = 6836235840.

The previous prime is 7222667629. The next prime is 7222667677. The reversal of 7222667657 is 7567662227.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7222667657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7222667677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153488 + ... + 194945.

It is an arithmetic number, because the mean of its divisors is an integer number (951224820).

Almost surely, 2^7222667657 is an apocalyptic number.

It is an amenable number.

7222667657 is a deficient number, since it is larger than the sum of its proper divisors (387130903).

7222667657 is a wasteful number, since it uses less digits than its factorization.

7222667657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349543.

The product of its digits is 2963520, while the sum is 50.

The square root of 7222667657 is about 84986.2792278848. The cubic root of 7222667657 is about 1933.0030706139.

The spelling of 7222667657 in words is "seven billion, two hundred twenty-two million, six hundred sixty-seven thousand, six hundred fifty-seven".