16020947531667 has 16 divisors (see below), whose sum is σ = 23004726544800. Its totient is φ = 9858920750592.

The previous prime is 16020947531651. The next prime is 16020947531707. The reversal of 16020947531667 is 76613574902061.

It is not a de Polignac number, because 16020947531667 - 2⁴ = 16020947531651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16020947531467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612613 + ... + 5693609.

It is an arithmetic number, because the mean of its divisors is an integer number (1437795409050).

Almost surely, 2^{16020947531667} is an apocalyptic number.

16020947531667 is a deficient number, since it is larger than the sum of its proper divisors (6983779013133).

16020947531667 is a wasteful number, since it uses less digits than its factorization.

16020947531667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161862.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 16020947531667 in words is "sixteen trillion, twenty billion, nine hundred forty-seven million, five hundred thirty-one thousand, six hundred sixty-seven".