2155468461 has 8 divisors (see below), whose sum is σ = 2874271200. Its totient is φ = 1436822352.

The previous prime is 2155468451. The next prime is 2155468493. The reversal of 2155468461 is 1648645512.

2155468461 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 2155468461 - 2⁵ = 2155468429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155468421) 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, 2011 + ... + 65688.

It is an arithmetic number, because the mean of its divisors is an integer number (359283900).

Almost surely, 2^2155468461 is an apocalyptic number.

It is an amenable number.

2155468461 is a deficient number, since it is larger than the sum of its proper divisors (718802739).

2155468461 is a wasteful number, since it uses less digits than its factorization.

2155468461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78315.

The product of its digits is 230400, while the sum is 42.

The square root of 2155468461 is about 46427.0229607715. The cubic root of 2155468461 is about 1291.7562084542.

The spelling of 2155468461 in words is "two billion, one hundred fifty-five million, four hundred sixty-eight thousand, four hundred sixty-one".