7155880088 has 64 divisors (see below), whose sum is σ = 15837845760. Its totient is φ = 2967382656.

The previous prime is 7155880079. The next prime is 7155880097. The reversal of 7155880088 is 8800885517.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7155880079) and next prime (7155880097).

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243770 + ... + 271542.

It is an arithmetic number, because the mean of its divisors is an integer number (247466340).

Almost surely, 2^7155880088 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 7155880088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7918922880).

7155880088 is an abundant number, since it is smaller than the sum of its proper divisors (8681965672).

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

7155880088 is a wasteful number, since it uses less digits than its factorization.

7155880088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27936 (or 27932 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 50.

The square root of 7155880088 is about 84592.4351700552. The cubic root of 7155880088 is about 1927.0264902413.

The spelling of 7155880088 in words is "seven billion, one hundred fifty-five million, eight hundred eighty thousand, eighty-eight".