2051156412 has 48 divisors (see below), whose sum is σ = 5326288800. Its totient is φ = 682629120.

The previous prime is 2051156407. The next prime is 2051156413. The reversal of 2051156412 is 2146511502.

2051156412 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 15 + 641 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051156413) 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, 54414 + ... + 84042.

It is an arithmetic number, because the mean of its divisors is an integer number (110964350).

Almost surely, 2^2051156412 is an apocalyptic number.

It is an amenable number.

2051156412 is an abundant number, since it is smaller than the sum of its proper divisors (3275132388).

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

2051156412 is a wasteful number, since it uses less digits than its factorization.

2051156412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30283 (or 30275 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2051156412 is about 45289.6943244266. The cubic root of 2051156412 is about 1270.5729144712.

Adding to 2051156412 its reverse (2146511502), we get a palindrome (4197667914).

The spelling of 2051156412 in words is "two billion, fifty-one million, one hundred fifty-six thousand, four hundred twelve".