2155332411454 has 4 divisors (see below), whose sum is σ = 3232998617184. Its totient is φ = 1077666205726.

The previous prime is 2155332411431. The next prime is 2155332411503. The reversal of 2155332411454 is 4541142335512.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2155332411454² (a number of 25 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 538833102862 + ... + 538833102865.

It is an arithmetic number, because the mean of its divisors is an integer number (808249654296).

Almost surely, 2^{2155332411454} is an apocalyptic number.

2155332411454 is a deficient number, since it is larger than the sum of its proper divisors (1077666205730).

2155332411454 is a wasteful number, since it uses less digits than its factorization.

2155332411454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077666205729.

The product of its digits is 288000, while the sum is 40.

Adding to 2155332411454 its reverse (4541142335512), we get a palindrome (6696474746966).

The spelling of 2155332411454 in words is "two trillion, one hundred fifty-five billion, three hundred thirty-two million, four hundred eleven thousand, four hundred fifty-four".