7155891022 has 32 divisors (see below), whose sum is σ = 13034863872. Its totient is φ = 2876183424.

The previous prime is 7155891013. The next prime is 7155891103. The reversal of 7155891022 is 2201985517.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14233 + ... + 120475.

It is an arithmetic number, because the mean of its divisors is an integer number (407339496).

Almost surely, 2^7155891022 is an apocalyptic number.

7155891022 is a deficient number, since it is larger than the sum of its proper divisors (5878972850).

7155891022 is a wasteful number, since it uses less digits than its factorization.

7155891022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106552.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 7155891022 is about 84592.4997975589. The cubic root of 7155891022 is about 1927.0274717230.

The spelling of 7155891022 in words is "seven billion, one hundred fifty-five million, eight hundred ninety-one thousand, twenty-two".