7157115552 has 96 divisors (see below), whose sum is σ = 19461617280. Its totient is φ = 2300318720.

The previous prime is 7157115547. The next prime is 7157115557. The reversal of 7157115552 is 2555117517.

It is an interprime number because it is at equal distance from previous prime (7157115547) and next prime (7157115557).

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 7157115552.

It is not an unprimeable number, because it can be changed into a prime (7157115557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2952613 + ... + 2955035.

It is an arithmetic number, because the mean of its divisors is an integer number (202725180).

Almost surely, 2^7157115552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7157115552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9730808640).

7157115552 is an abundant number, since it is smaller than the sum of its proper divisors (12304501728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7157115552 is a wasteful number, since it uses less digits than its factorization.

7157115552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3518 counting only the distinct ones).

The product of its digits is 61250, while the sum is 39.

The square root of 7157115552 is about 84599.7373045567. The cubic root of 7157115552 is about 1927.1373843510.

The spelling of 7157115552 in words is "seven billion, one hundred fifty-seven million, one hundred fifteen thousand, five hundred fifty-two".