2154544454512 has 20 divisors (see below), whose sum is σ = 4215760872696. Its totient is φ = 1066606164800.

The previous prime is 2154544454497. The next prime is 2154544454537.

It is a happy number.

2154544454512 is nontrivially palindromic in base 10.

It is a congruent 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, 666627238 + ... + 666630469.

Almost surely, 2^{2154544454512} is an apocalyptic number.

It is an amenable number.

2154544454512 is a deficient number, since it is larger than the sum of its proper divisors (2061216418184).

2154544454512 is a wasteful number, since it uses less digits than its factorization.

2154544454512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333257816 (or 1333257810 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 46.

The spelling of 2154544454512 in words is "two trillion, one hundred fifty-four billion, five hundred forty-four million, four hundred fifty-four thousand, five hundred twelve".