21160466043155 has 4 divisors (see below), whose sum is σ = 25392559251792. Its totient is φ = 16928372834520.

The previous prime is 21160466043149. The next prime is 21160466043173. The reversal of 21160466043155 is 55134066406112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21160466043155 - 2⁴ = 21160466043139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116046604311 + ... + 2116046604320.

It is an arithmetic number, because the mean of its divisors is an integer number (6348139812948).

Almost surely, 2^{21160466043155} is an apocalyptic number.

21160466043155 is a deficient number, since it is larger than the sum of its proper divisors (4232093208637).

21160466043155 is an equidigital number, since it uses as much as digits as its factorization.

21160466043155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232093208636.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 21160466043155 in words is "twenty-one trillion, one hundred sixty billion, four hundred sixty-six million, forty-three thousand, one hundred fifty-five".