2151708336 has 60 divisors (see below), whose sum is σ = 6026768280. Its totient is φ = 716643840.

The previous prime is 2151708329. The next prime is 2151708373. The reversal of 2151708336 is 6338071512.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2151708336.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190495 + ... + 201473.

It is an arithmetic number, because the mean of its divisors is an integer number (100446138).

Almost surely, 2^2151708336 is an apocalyptic number.

It is an amenable number.

2151708336 is an abundant number, since it is smaller than the sum of its proper divisors (3875059944).

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

2151708336 is a wasteful number, since it uses less digits than its factorization.

2151708336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12354 (or 12345 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2151708336 is about 46386.5102804684. The cubic root of 2151708336 is about 1291.0046329435.

Adding to 2151708336 its reverse (6338071512), we get a palindrome (8489779848).

The spelling of 2151708336 in words is "two billion, one hundred fifty-one million, seven hundred eight thousand, three hundred thirty-six".