16641940512 has 48 divisors (see below), whose sum is σ = 44865781632. Its totient is φ = 5397384960.

The previous prime is 16641940501. The next prime is 16641940537. The reversal of 16641940512 is 21504914661.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339064 + ... + 2346167.

It is an arithmetic number, because the mean of its divisors is an integer number (934703784).

Almost surely, 2^16641940512 is an apocalyptic number.

16641940512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16641940512 is an abundant number, since it is smaller than the sum of its proper divisors (28223841120).

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

16641940512 is a wasteful number, since it uses less digits than its factorization.

16641940512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685281 (or 4685273 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 16641940512 in words is "sixteen billion, six hundred forty-one million, nine hundred forty thousand, five hundred twelve".