2166454079 has 8 divisors (see below), whose sum is σ = 2217763152. Its totient is φ = 2115187200.

The previous prime is 2166454061. The next prime is 2166454091. The reversal of 2166454079 is 9704546612.

2166454079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2166454079 - 2¹² = 2166449983 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 (2166454379) 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, 109229 + ... + 127529.

It is an arithmetic number, because the mean of its divisors is an integer number (277220394).

Almost surely, 2^2166454079 is an apocalyptic number.

2166454079 is a deficient number, since it is larger than the sum of its proper divisors (51309073).

2166454079 is a wasteful number, since it uses less digits than its factorization.

2166454079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21097.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 2166454079 is about 46545.1831986941. The cubic root of 2166454079 is about 1293.9470237750.

The spelling of 2166454079 in words is "two billion, one hundred sixty-six million, four hundred fifty-four thousand, seventy-nine".