2661454458 has 48 divisors (see below), whose sum is σ = 6215489280. Its totient is φ = 818193312.

The previous prime is 2661454441. The next prime is 2661454517. The reversal of 2661454458 is 8544541662.

It is a happy number.

2661454458 is a `hidden beast` number, since 2 + 66 + 145 + 445 + 8 = 666.

2661454458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304335 + ... + 312957.

It is an arithmetic number, because the mean of its divisors is an integer number (129489360).

Almost surely, 2^2661454458 is an apocalyptic number.

2661454458 is an abundant number, since it is smaller than the sum of its proper divisors (3554034822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661454458 is a wasteful number, since it uses less digits than its factorization.

2661454458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963 (or 9960 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 2661454458 is about 51589.2862714731. The cubic root of 2661454458 is about 1385.8184735058.

The spelling of 2661454458 in words is "two billion, six hundred sixty-one million, four hundred fifty-four thousand, four hundred fifty-eight".