7115121656 has 32 divisors (see below), whose sum is σ = 14165720640. Its totient is φ = 3338784768.

The previous prime is 7115121641. The next prime is 7115121677. The reversal of 7115121656 is 6561215117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26096 + ... + 122111.

It is an arithmetic number, because the mean of its divisors is an integer number (442678770).

Almost surely, 2^7115121656 is an apocalyptic number.

It is an amenable number.

7115121656 is a deficient number, since it is larger than the sum of its proper divisors (7050598984).

7115121656 is a wasteful number, since it uses less digits than its factorization.

7115121656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148583 (or 148579 counting only the distinct ones).

The product of its digits is 12600, while the sum is 35.

The square root of 7115121656 is about 84351.1805252304. The cubic root of 7115121656 is about 1923.3608720506.

The spelling of 7115121656 in words is "seven billion, one hundred fifteen million, one hundred twenty-one thousand, six hundred fifty-six".