2151550080 has 256 divisors, whose sum is σ = 7711200000. Its totient is φ = 566894592.

The previous prime is 2151550061. The next prime is 2151550127. The reversal of 2151550080 is 800551512.

2151550080 is a `hidden beast` number, since 2 + 151 + 5 + 500 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1537221 + ... + 1538619.

It is an arithmetic number, because the mean of its divisors is an integer number (30121875).

Almost surely, 2^2151550080 is an apocalyptic number.

2151550080 is a gapful number since it is divisible by the number (20) 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 2151550080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3855600000).

2151550080 is an abundant number, since it is smaller than the sum of its proper divisors (5559649920).

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

2151550080 is a wasteful number, since it uses less digits than its factorization.

2151550080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 2151550080 is about 46384.8044083405. The cubic root of 2151550080 is about 1290.9729814669.

The spelling of 2151550080 in words is "two billion, one hundred fifty-one million, five hundred fifty thousand, eighty".