109401755440 has 40 divisors (see below), whose sum is σ = 254391472368. Its totient is φ = 43755129600.

The previous prime is 109401755431. The next prime is 109401755473. The reversal of 109401755440 is 44557104901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 109401755393 and 109401755402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576490 + ... + 742390.

Almost surely, 2^109401755440 is an apocalyptic number.

109401755440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109401755440 is an abundant number, since it is smaller than the sum of its proper divisors (144989716928).

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

109401755440 is a wasteful number, since it uses less digits than its factorization.

109401755440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174157 (or 174151 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 109401755440 in words is "one hundred nine billion, four hundred one million, seven hundred fifty-five thousand, four hundred forty".