2151213024455 has 16 divisors (see below), whose sum is σ = 2981788321824. Its totient is φ = 1472488058880.

The previous prime is 2151213024431. The next prime is 2151213024547. The reversal of 2151213024455 is 5544203121512.

It is not a de Polignac number, because 2151213024455 - 2³⁰ = 2150139282631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1150380362 + ... + 1150382231.

It is an arithmetic number, because the mean of its divisors is an integer number (186361770114).

Almost surely, 2^{2151213024455} is an apocalyptic number.

2151213024455 is a deficient number, since it is larger than the sum of its proper divisors (830575297369).

2151213024455 is a wasteful number, since it uses less digits than its factorization.

2151213024455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300762626.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 2151213024455 its reverse (5544203121512), we get a palindrome (7695416145967).

The spelling of 2151213024455 in words is "two trillion, one hundred fifty-one billion, two hundred thirteen million, twenty-four thousand, four hundred fifty-five".