1012665156 has 24 divisors (see below), whose sum is σ = 2363524800. Its totient is φ = 337463712.

The previous prime is 1012665151. The next prime is 1012665161. The reversal of 1012665156 is 6515662101.

It is an interprime number because it is at equal distance from previous prime (1012665151) and next prime (1012665161).

It is not an unprimeable number, because it can be changed into a prime (1012665151) 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 7 ways as a sum of consecutive naturals, for example, 46545 + ... + 64743.

It is an arithmetic number, because the mean of its divisors is an integer number (98480200).

Almost surely, 2^1012665156 is an apocalyptic number.

It is an amenable number.

1012665156 is an abundant number, since it is smaller than the sum of its proper divisors (1350859644).

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

1012665156 is a wasteful number, since it uses less digits than its factorization.

1012665156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22843 (or 22841 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1012665156 is about 31822.4002237418. The cubic root of 1012665156 is about 1004.2040201146.

The spelling of 1012665156 in words is "one billion, twelve million, six hundred sixty-five thousand, one hundred fifty-six".