2155532124051 has 32 divisors (see below), whose sum is σ = 3238975434240. Its totient is φ = 1416511605600.

The previous prime is 2155532124047. The next prime is 2155532124061. The reversal of 2155532124051 is 1504212355512.

2155532124051 is a `hidden beast` number, since 2 + 1 + 5 + 553 + 2 + 12 + 40 + 51 = 666.

It is not a de Polignac number, because 2155532124051 - 2² = 2155532124047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2155532123997 and 2155532124015.

It is not an unprimeable number, because it can be changed into a prime (2155532124041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10210896 + ... + 10419858.

It is an arithmetic number, because the mean of its divisors is an integer number (101217982320).

Almost surely, 2^{2155532124051} is an apocalyptic number.

2155532124051 is a deficient number, since it is larger than the sum of its proper divisors (1083443310189).

2155532124051 is a wasteful number, since it uses less digits than its factorization.

2155532124051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214424 (or 214418 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 2155532124051 its reverse (1504212355512), we get a palindrome (3659744479563).

The spelling of 2155532124051 in words is "two trillion, one hundred fifty-five billion, five hundred thirty-two million, one hundred twenty-four thousand, fifty-one".