11863215031056 has 160 divisors (see below), whose sum is σ = 32688047259648. Its totient is φ = 3698761228800.

The previous prime is 11863215031021. The next prime is 11863215031069. The reversal of 11863215031056 is 65013051236811.

It is a super-2 number, since 2×11863215031056² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11863215030999 and 11863215031017.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59623770 + ... + 59822406.

Almost surely, 2^{11863215031056} is an apocalyptic number.

11863215031056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11863215031056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16344023629824).

11863215031056 is an abundant number, since it is smaller than the sum of its proper divisors (20824832228592).

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

11863215031056 is a wasteful number, since it uses less digits than its factorization.

11863215031056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199869 (or 199863 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

Adding to 11863215031056 its reverse (65013051236811), we get a palindrome (76876266267867).

The spelling of 11863215031056 in words is "eleven trillion, eight hundred sixty-three billion, two hundred fifteen million, thirty-one thousand, fifty-six".