2155710560 has 24 divisors (see below), whose sum is σ = 5092866576. Its totient is φ = 862284160.

The previous prime is 2155710559. The next prime is 2155710589. The reversal of 2155710560 is 650175512.

It is a super-3 number, since 3×2155710560³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6736436 + ... + 6736755.

It is an arithmetic number, because the mean of its divisors is an integer number (212202774).

Almost surely, 2^2155710560 is an apocalyptic number.

2155710560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155710560 is an abundant number, since it is smaller than the sum of its proper divisors (2937156016).

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

2155710560 is a wasteful number, since it uses less digits than its factorization.

2155710560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13473206 (or 13473198 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 2155710560 is about 46429.6301945213. The cubic root of 2155710560 is about 1291.8045693533.

The spelling of 2155710560 in words is "two billion, one hundred fifty-five million, seven hundred ten thousand, five hundred sixty".