11563172866770 has 192 divisors, whose sum is σ = 32485714329600. Its totient is φ = 2626419411840.

The previous prime is 11563172866759. The next prime is 11563172866781. The reversal of 11563172866770 is 7766827136511.

It is an interprime number because it is at equal distance from previous prime (11563172866759) and next prime (11563172866781).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 168252715 + ... + 168321425.

It is an arithmetic number, because the mean of its divisors is an integer number (169196428800).

Almost surely, 2^{11563172866770} is an apocalyptic number.

11563172866770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11563172866770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16242857164800).

11563172866770 is an abundant number, since it is smaller than the sum of its proper divisors (20922541462830).

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

11563172866770 is a wasteful number, since it uses less digits than its factorization.

11563172866770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69453 (or 69446 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 11563172866770 in words is "eleven trillion, five hundred sixty-three billion, one hundred seventy-two million, eight hundred sixty-six thousand, seven hundred seventy".