2012155626 has 32 divisors (see below), whose sum is σ = 4473681408. Its totient is φ = 599152320.

The previous prime is 2012155609. The next prime is 2012155627. The reversal of 2012155626 is 6265512102.

It is a junction number, because it is equal to n+sod(n) for n = 2012155593 and 2012155602.

It is not an unprimeable number, because it can be changed into a prime (2012155627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413661 + ... + 418496.

It is an arithmetic number, because the mean of its divisors is an integer number (139802544).

Almost surely, 2^2012155626 is an apocalyptic number.

2012155626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2012155626 is an abundant number, since it is smaller than the sum of its proper divisors (2461525782).

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

2012155626 is a wasteful number, since it uses less digits than its factorization.

2012155626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832206.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2012155626 is about 44857.0577055607. The cubic root of 2012155626 is about 1262.4684175480.

Adding to 2012155626 its reverse (6265512102), we get a palindrome (8277667728).

The spelling of 2012155626 in words is "two billion, twelve million, one hundred fifty-five thousand, six hundred twenty-six".