866252152 has 8 divisors (see below), whose sum is σ = 1624222800. Its totient is φ = 433126072.

The previous prime is 866252137. The next prime is 866252173. The reversal of 866252152 is 251252668.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×866252152² = 1500785581689262208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54140752 + ... + 54140767.

It is an arithmetic number, because the mean of its divisors is an integer number (203027850).

Almost surely, 2^866252152 is an apocalyptic number.

It is an amenable number.

866252152 is a deficient number, since it is larger than the sum of its proper divisors (757970648).

866252152 is a wasteful number, since it uses less digits than its factorization.

866252152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108281525 (or 108281521 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 866252152 is about 29432.1618641920. The cubic root of 866252152 is about 953.2674753055.

The spelling of 866252152 in words is "eight hundred sixty-six million, two hundred fifty-two thousand, one hundred fifty-two".