16445378730 has 32 divisors (see below), whose sum is σ = 43056992448. Its totient is φ = 3986758400.

The previous prime is 16445378711. The next prime is 16445378773. The reversal of 16445378730 is 3787354461.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16445378730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24916911 + ... + 24917570.

It is an arithmetic number, because the mean of its divisors is an integer number (1345531014).

Almost surely, 2^16445378730 is an apocalyptic number.

16445378730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16445378730 is an abundant number, since it is smaller than the sum of its proper divisors (26611613718).

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

16445378730 is a wasteful number, since it uses less digits than its factorization.

16445378730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49834502.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 16445378730 in words is "sixteen billion, four hundred forty-five million, three hundred seventy-eight thousand, seven hundred thirty".