16940169420 has 48 divisors (see below), whose sum is σ = 47440796928. Its totient is φ = 4516585920.

The previous prime is 16940169391. The next prime is 16940169427. The reversal of 16940169420 is 2496104961.

It is not an unprimeable number, because it can be changed into a prime (16940169427) 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, 372777 + ... + 415743.

It is an arithmetic number, because the mean of its divisors is an integer number (988349936).

Almost surely, 2^16940169420 is an apocalyptic number.

16940169420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16940169420 is an abundant number, since it is smaller than the sum of its proper divisors (30500627508).

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

16940169420 is a wasteful number, since it uses less digits than its factorization.

16940169420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49550 (or 49548 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 16940169420 in words is "sixteen billion, nine hundred forty million, one hundred sixty-nine thousand, four hundred twenty".