2155037304552 has 128 divisors (see below), whose sum is σ = 5906428968960. Its totient is φ = 649817003520.

The previous prime is 2155037304547. The next prime is 2155037304577. The reversal of 2155037304552 is 2554037305512.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 102283923 + ... + 102304989.

It is an arithmetic number, because the mean of its divisors is an integer number (46143976320).

Almost surely, 2^{2155037304552} is an apocalyptic number.

2155037304552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155037304552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2953214484480).

2155037304552 is an abundant number, since it is smaller than the sum of its proper divisors (3751391664408).

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

2155037304552 is a wasteful number, since it uses less digits than its factorization.

2155037304552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983 (or 22979 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 42.

The spelling of 2155037304552 in words is "two trillion, one hundred fifty-five billion, thirty-seven million, three hundred four thousand, five hundred fifty-two".