10891638110 has 32 divisors (see below), whose sum is σ = 20241349632. Its totient is φ = 4216907520.

The previous prime is 10891638103. The next prime is 10891638133. The reversal of 10891638110 is 1183619801.

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, 52517 + ... + 156656.

It is an arithmetic number, because the mean of its divisors is an integer number (632542176).

Almost surely, 2^10891638110 is an apocalyptic number.

10891638110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10891638110 is a deficient number, since it is larger than the sum of its proper divisors (9349711522).

10891638110 is a wasteful number, since it uses less digits than its factorization.

10891638110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209348.

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 10891638110 in words is "ten billion, eight hundred ninety-one million, six hundred thirty-eight thousand, one hundred ten".