2151166752 has 72 divisors (see below), whose sum is σ = 6991298496. Its totient is φ = 614618496.

The previous prime is 2151166741. The next prime is 2151166777. The reversal of 2151166752 is 2576611512.

It is a tau number, because it is divible by the number of its divisors (72).

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

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, 531508 + ... + 535539.

It is an arithmetic number, because the mean of its divisors is an integer number (97101368).

Almost surely, 2^2151166752 is an apocalyptic number.

It is an amenable number.

2151166752 is an abundant number, since it is smaller than the sum of its proper divisors (4840131744).

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

2151166752 is a wasteful number, since it uses less digits than its factorization.

2151166752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067070 (or 1067059 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 2151166752 is about 46380.6721814163. The cubic root of 2151166752 is about 1290.8963087636.

The spelling of 2151166752 in words is "two billion, one hundred fifty-one million, one hundred sixty-six thousand, seven hundred fifty-two".