16169041980 has 288 divisors, whose sum is σ = 60489846144. Its totient is φ = 3404408832.

The previous prime is 16169041979. The next prime is 16169041991. The reversal of 16169041980 is 8914096161.

It is a super-2 number, since 2×16169041980² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12661102 + ... + 12662378.

It is an arithmetic number, because the mean of its divisors is an integer number (210034188).

Almost surely, 2^16169041980 is an apocalyptic number.

16169041980 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 16169041980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30244923072).

16169041980 is an abundant number, since it is smaller than the sum of its proper divisors (44320804164).

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

16169041980 is a wasteful number, since it uses less digits than its factorization.

16169041980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 16169041980 in words is "sixteen billion, one hundred sixty-nine million, forty-one thousand, nine hundred eighty".