16037720064 has 364 divisors, whose sum is σ = 49634118072. Its totient is φ = 5175705600.

The previous prime is 16037720057. The next prime is 16037720077. The reversal of 16037720064 is 46002773061.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 122425279 + ... + 122425409.

Almost surely, 2^16037720064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16037720064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24817059036).

16037720064 is an abundant number, since it is smaller than the sum of its proper divisors (33596398008).

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

16037720064 is an frugal number, since it uses more digits than its factorization.

16037720064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 16037720064 in words is "sixteen billion, thirty-seven million, seven hundred twenty thousand, sixty-four".