2155630024356 has 24 divisors (see below), whose sum is σ = 5030081955360. Its totient is φ = 718503546432.

The previous prime is 2155630024309. The next prime is 2155630024399. The reversal of 2155630024356 is 6534200365512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4748266 + ... + 5182401.

It is an arithmetic number, because the mean of its divisors is an integer number (209586748140).

Almost surely, 2^{2155630024356} is an apocalyptic number.

It is an amenable number.

2155630024356 is an abundant number, since it is smaller than the sum of its proper divisors (2874451931004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155630024356 is a wasteful number, since it uses less digits than its factorization.

2155630024356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9948763 (or 9948761 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 2155630024356 its reverse (6534200365512), we get a palindrome (8689830389868).

The spelling of 2155630024356 in words is "two trillion, one hundred fifty-five billion, six hundred thirty million, twenty-four thousand, three hundred fifty-six".