109755115640 has 128 divisors (see below), whose sum is σ = 262582689600. Its totient is φ = 41214136320.

The previous prime is 109755115621. The next prime is 109755115751. The reversal of 109755115640 is 46511557901.

It is a junction number, because it is equal to n+sod(n) for n = 109755115591 and 109755115600.

It is a congruent number.

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, 14597162 + ... + 14604678.

Almost surely, 2^109755115640 is an apocalyptic number.

109755115640 is a gapful number since it is divisible by the number (10) 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 109755115640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131291344800).

109755115640 is an abundant number, since it is smaller than the sum of its proper divisors (152827573960).

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

109755115640 is a wasteful number, since it uses less digits than its factorization.

109755115640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905 (or 7901 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 44.

The spelling of 109755115640 in words is "one hundred nine billion, seven hundred fifty-five million, one hundred fifteen thousand, six hundred forty".