16133037971 has 4 divisors (see below), whose sum is σ = 16526526744. Its totient is φ = 15739549200.

The previous prime is 16133037967. The next prime is 16133037983. The reversal of 16133037971 is 17973033161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17973033161 = 37 ⋅485757653.

It is a cyclic number.

It is not a de Polignac number, because 16133037971 - 2² = 16133037967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 393488731 = 16133037971 / (1 + 6 + 1 + 3 + 3 + 0 + 3 + 7 + 9 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16133037931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196744325 + ... + 196744406.

It is an arithmetic number, because the mean of its divisors is an integer number (4131631686).

Almost surely, 2^16133037971 is an apocalyptic number.

16133037971 is a deficient number, since it is larger than the sum of its proper divisors (393488773).

16133037971 is an equidigital number, since it uses as much as digits as its factorization.

16133037971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393488772.

The product of its (nonzero) digits is 71442, while the sum is 41.

The spelling of 16133037971 in words is "sixteen billion, one hundred thirty-three million, thirty-seven thousand, nine hundred seventy-one".