2151560100 has 72 divisors (see below), whose sum is σ = 6232323328. Its totient is φ = 573091200.

The previous prime is 2151560087. The next prime is 2151560107. The reversal of 2151560100 is 10651512.

It is not an unprimeable number, because it can be changed into a prime (2151560107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293682 + ... + 300918.

Almost surely, 2^2151560100 is an apocalyptic number.

2151560100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151560100 is an abundant number, since it is smaller than the sum of its proper divisors (4080763228).

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

2151560100 is a wasteful number, since it uses less digits than its factorization.

2151560100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245 (or 8238 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2151560100 is about 46384.9124177248. The cubic root of 2151560100 is about 1290.9749855304.

The spelling of 2151560100 in words is "two billion, one hundred fifty-one million, five hundred sixty thousand, one hundred".