2155343302530 has 192 divisors, whose sum is σ = 6318570405888. Its totient is φ = 505146170880.

The previous prime is 2155343302529. The next prime is 2155343302531. The reversal of 2155343302530 is 352033435512.

2155343302530 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 343 + 302 + 5 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2155343302529) and next prime (2155343302531).

It is not an unprimeable number, because it can be changed into a prime (2155343302531) by changing a digit.

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 in 95 ways as a sum of consecutive naturals, for example, 5563519 + ... + 5938301.

It is an arithmetic number, because the mean of its divisors is an integer number (32909220864).

Almost surely, 2^{2155343302530} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155343302530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3159285202944).

2155343302530 is an abundant number, since it is smaller than the sum of its proper divisors (4163227103358).

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

2155343302530 is a wasteful number, since it uses less digits than its factorization.

2155343302530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375001 (or 374998 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 2155343302530 in words is "two trillion, one hundred fifty-five billion, three hundred forty-three million, three hundred two thousand, five hundred thirty".