21160138184967 has 16 divisors (see below), whose sum is σ = 28278531607040. Its totient is φ = 14074253474400.

The previous prime is 21160138184917. The next prime is 21160138185007. The reversal of 21160138184967 is 76948183106112.

It is not a de Polignac number, because 21160138184967 - 2¹² = 21160138180871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160138184917) 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, 55203342 + ... + 55585332.

It is an arithmetic number, because the mean of its divisors is an integer number (1767408225440).

Almost surely, 2^{21160138184967} is an apocalyptic number.

21160138184967 is a deficient number, since it is larger than the sum of its proper divisors (7118393422073).

21160138184967 is a wasteful number, since it uses less digits than its factorization.

21160138184967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424494.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 21160138184967 in words is "twenty-one trillion, one hundred sixty billion, one hundred thirty-eight million, one hundred eighty-four thousand, nine hundred sixty-seven".