16445772740007 has 48 divisors (see below), whose sum is σ = 27101669605920. Its totient is φ = 9520049442816.

The previous prime is 16445772739927. The next prime is 16445772740017. The reversal of 16445772740007 is 70004727754461.

It is a happy number.

16445772740007 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 577 + 27 + 40 + 0 + 0 + 7 = 666.

It is not a de Polignac number, because 16445772740007 - 2¹¹ = 16445772737959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445772740017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1499119 + ... + 5927807.

It is an arithmetic number, because the mean of its divisors is an integer number (564618116790).

Almost surely, 2^{16445772740007} is an apocalyptic number.

16445772740007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16445772740007 is a deficient number, since it is larger than the sum of its proper divisors (10655896865913).

16445772740007 is a wasteful number, since it uses less digits than its factorization.

16445772740007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430592 (or 4430589 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 54.

The spelling of 16445772740007 in words is "sixteen trillion, four hundred forty-five billion, seven hundred seventy-two million, seven hundred forty thousand, seven".