16277132013721 has 8 divisors (see below), whose sum is σ = 16309704378240. Its totient is φ = 16244560492512.

The previous prime is 16277132013707. The next prime is 16277132013749. The reversal of 16277132013721 is 12731023177261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16277132013721 - 2¹⁵ = 16277131980953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16277132014721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50699820 + ... + 51019858.

It is an arithmetic number, because the mean of its divisors is an integer number (2038713047280).

Almost surely, 2^{16277132013721} is an apocalyptic number.

It is an amenable number.

16277132013721 is a deficient number, since it is larger than the sum of its proper divisors (32572364519).

16277132013721 is a wasteful number, since it uses less digits than its factorization.

16277132013721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421655.

The product of its (nonzero) digits is 148176, while the sum is 43.

The spelling of 16277132013721 in words is "sixteen trillion, two hundred seventy-seven billion, one hundred thirty-two million, thirteen thousand, seven hundred twenty-one".