2012156567 has 8 divisors (see below), whose sum is σ = 2136846816. Its totient is φ = 1888169472.

The previous prime is 2012156551. The next prime is 2012156569. The reversal of 2012156567 is 7656512102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012156567 - 2⁴ = 2012156551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012156569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169883 + ... + 181340.

It is an arithmetic number, because the mean of its divisors is an integer number (267105852).

Almost surely, 2^2012156567 is an apocalyptic number.

2012156567 is a deficient number, since it is larger than the sum of its proper divisors (124690249).

2012156567 is a wasteful number, since it uses less digits than its factorization.

2012156567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351577.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 2012156567 is about 44857.0681944329. The cubic root of 2012156567 is about 1262.4686143490.

Adding to 2012156567 its reverse (7656512102), we get a palindrome (9668668669).

The spelling of 2012156567 in words is "two billion, twelve million, one hundred fifty-six thousand, five hundred sixty-seven".