11378102556 has 48 divisors (see below), whose sum is σ = 27551291040. Its totient is φ = 3650330880.

The previous prime is 11378102543. The next prime is 11378102563. The reversal of 11378102556 is 65520187311.

It is a super-2 number, since 2×11378102556² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its 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, 58746 + ... + 161886.

It is an arithmetic number, because the mean of its divisors is an integer number (573985230).

Almost surely, 2^11378102556 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 11378102556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13775645520).

11378102556 is an abundant number, since it is smaller than the sum of its proper divisors (16173188484).

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

11378102556 is a wasteful number, since it uses less digits than its factorization.

11378102556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103494 (or 103492 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

Adding to 11378102556 its reverse (65520187311), we get a palindrome (76898289867).

The spelling of 11378102556 in words is "eleven billion, three hundred seventy-eight million, one hundred two thousand, five hundred fifty-six".