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16169041920 = 22235257

16169041920 has 184 divisors, whose sum is σ = 51942254544. Its totient is φ = 4294967296.

The previous prime is 16169041913. The next prime is 16169041927. The reversal of 16169041920 is 2914096161.

It is an interprime number because it is at equal distance from previous prime (16169041913) and next prime (16169041927).

It is a super-2 number, since 2×161690419202 (a number of 21 digits) contains 22 as substring.

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16169041927) by changing a digit.

In principle, a polygon with 16169041920 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62914432 + ... + 62914688.

Almost surely, 216169041920 is an apocalyptic number.

16169041920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16169041920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25971127272).

16169041920 is an abundant number, since it is smaller than the sum of its proper divisors (35773212624).

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

16169041920 is an frugal number, since it uses more digits than its factorization.

16169041920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 16169041920 in words is "sixteen billion, one hundred sixty-nine million, forty-one thousand, nine hundred twenty".