15940359105 has 48 divisors (see below), whose sum is σ = 28109135040. Its totient is φ = 7707934080.

The previous prime is 15940359091. The next prime is 15940359121. The reversal of 15940359105 is 50195304951.

It is not a de Polignac number, because 15940359105 - 2¹³ = 15940350913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 676299 + ... + 699471.

It is an arithmetic number, because the mean of its divisors is an integer number (585606980).

Almost surely, 2^15940359105 is an apocalyptic number.

15940359105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15940359105 is a deficient number, since it is larger than the sum of its proper divisors (12168775935).

15940359105 is a wasteful number, since it uses less digits than its factorization.

15940359105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23582 (or 23571 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 42.

The spelling of 15940359105 in words is "fifteen billion, nine hundred forty million, three hundred fifty-nine thousand, one hundred five".