2155005532000 has 48 divisors (see below), whose sum is σ = 5294848601952. Its totient is φ = 862002211200.

The previous prime is 2155005531979. The next prime is 2155005532013. The reversal of 2155005532000 is 2355005512.

It is a self number, because there is not a number n which added to its sum of digits gives 2155005532000.

It is a congruent 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, 269371692 + ... + 269379691.

It is an arithmetic number, because the mean of its divisors is an integer number (110309345874).

Almost surely, 2^{2155005532000} is an apocalyptic number.

2155005532000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155005532000 is an abundant number, since it is smaller than the sum of its proper divisors (3139843069952).

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

2155005532000 is an equidigital number, since it uses as much as digits as its factorization.

2155005532000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538751408 (or 538751390 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 2155005532000 in words is "two trillion, one hundred fifty-five billion, five million, five hundred thirty-two thousand".