2155532123324 has 6 divisors (see below), whose sum is σ = 3772181215824. Its totient is φ = 1077766061660.

The previous prime is 2155532123293. The next prime is 2155532123351. The reversal of 2155532123324 is 4233212355512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269441515412 + ... + 269441515419.

It is an arithmetic number, because the mean of its divisors is an integer number (628696869304).

Almost surely, 2^{2155532123324} is an apocalyptic number.

It is an amenable number.

2155532123324 is a deficient number, since it is larger than the sum of its proper divisors (1616649092500).

2155532123324 is a wasteful number, since it uses less digits than its factorization.

2155532123324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538883030835 (or 538883030833 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

Adding to 2155532123324 its reverse (4233212355512), we get a palindrome (6388744478836).

The spelling of 2155532123324 in words is "two trillion, one hundred fifty-five billion, five hundred thirty-two million, one hundred twenty-three thousand, three hundred twenty-four".