10861955136 has 84 divisors (see below), whose sum is σ = 31219274112. Its totient is φ = 3610715904.

The previous prime is 10861955123. The next prime is 10861955149. The reversal of 10861955136 is 63155916801.

10861955136 is a `hidden beast` number, since 1 + 0 + 8 + 61 + 9 + 551 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (10861955123) and next prime (10861955149).

It is a junction number, because it is equal to n+sod(n) for n = 10861955091 and 10861955100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185701 + ... + 237083.

Almost surely, 2^10861955136 is an apocalyptic number.

10861955136 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 10861955136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15609637056).

10861955136 is an abundant number, since it is smaller than the sum of its proper divisors (20357318976).

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

10861955136 is a wasteful number, since it uses less digits than its factorization.

10861955136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51768 (or 51755 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 10861955136 in words is "ten billion, eight hundred sixty-one million, nine hundred fifty-five thousand, one hundred thirty-six".