2156450057445 has 16 divisors (see below), whose sum is σ = 3543571987200. Its totient is φ = 1119022732224.

The previous prime is 2156450057393. The next prime is 2156450057453. The reversal of 2156450057445 is 5447500546512.

It is not a de Polignac number, because 2156450057445 - 2¹³ = 2156450049253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156450057394 and 2156450057403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1942747245 + ... + 1942748354.

It is an arithmetic number, because the mean of its divisors is an integer number (221473249200).

Almost surely, 2^{2156450057445} is an apocalyptic number.

It is an amenable number.

2156450057445 is a deficient number, since it is larger than the sum of its proper divisors (1387121929755).

2156450057445 is a wasteful number, since it uses less digits than its factorization.

2156450057445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885495644.

The product of its (nonzero) digits is 3360000, while the sum is 48.

The spelling of 2156450057445 in words is "two trillion, one hundred fifty-six billion, four hundred fifty million, fifty-seven thousand, four hundred forty-five".