16515144340 has 96 divisors (see below), whose sum is σ = 35728197120. Its totient is φ = 6410686464.

The previous prime is 16515144263. The next prime is 16515144379. The reversal of 16515144340 is 4344151561.

It is a junction number, because it is equal to n+sod(n) for n = 16515144296 and 16515144305.

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, 30191947 + ... + 30192493.

It is an arithmetic number, because the mean of its divisors is an integer number (372168720).

Almost surely, 2^16515144340 is an apocalyptic number.

16515144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16515144340 is an abundant number, since it is smaller than the sum of its proper divisors (19213052780).

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

16515144340 is a wasteful number, since it uses less digits than its factorization.

16515144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 16515144340 in words is "sixteen billion, five hundred fifteen million, one hundred forty-four thousand, three hundred forty".