16066945369440 has 960 divisors, whose sum is σ = 65958686373888. Its totient is φ = 3607143321600.

The previous prime is 16066945369351. The next prime is 16066945369457. The reversal of 16066945369440 is 4496354966061.

16066945369440 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 6 + 9 + 4 + 536 + 94 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5041399527 + ... + 5041402713.

Almost surely, 2^{16066945369440} is an apocalyptic number.

16066945369440 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 16066945369440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32979343186944).

16066945369440 is an abundant number, since it is smaller than the sum of its proper divisors (49891741004448).

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

16066945369440 is a wasteful number, since it uses less digits than its factorization.

16066945369440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 63.

The spelling of 16066945369440 in words is "sixteen trillion, sixty-six billion, nine hundred forty-five million, three hundred sixty-nine thousand, four hundred forty".