16748740657145 has 16 divisors (see below), whose sum is σ = 22969855870848. Its totient is φ = 11484773537280.

The previous prime is 16748740657127. The next prime is 16748740657171. The reversal of 16748740657145 is 54175604784761.

It is a happy number.

It is not a de Polignac number, because 16748740657145 - 2¹⁰ = 16748740656121 is a prime.

It is a super-4 number, since 4×16748740657145⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

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, 3942857 + ... + 7003113.

It is an arithmetic number, because the mean of its divisors is an integer number (1435615991928).

Almost surely, 2^{16748740657145} is an apocalyptic number.

It is an amenable number.

16748740657145 is a deficient number, since it is larger than the sum of its proper divisors (6221115213703).

16748740657145 is a wasteful number, since it uses less digits than its factorization.

16748740657145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216640.

The product of its (nonzero) digits is 158054400, while the sum is 65.

The spelling of 16748740657145 in words is "sixteen trillion, seven hundred forty-eight billion, seven hundred forty million, six hundred fifty-seven thousand, one hundred forty-five".