16940015540 has 48 divisors (see below), whose sum is σ = 40667700864. Its totient is φ = 5806339200.

The previous prime is 16940015539. The next prime is 16940015549. The reversal of 16940015540 is 4551004961.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 16940015540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940015549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534950 + ... + 565730.

It is an arithmetic number, because the mean of its divisors is an integer number (847243768).

Almost surely, 2^16940015540 is an apocalyptic number.

16940015540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16940015540 is an abundant number, since it is smaller than the sum of its proper divisors (23727685324).

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

16940015540 is a wasteful number, since it uses less digits than its factorization.

16940015540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34728 (or 34726 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 16940015540 in words is "sixteen billion, nine hundred forty million, fifteen thousand, five hundred forty".