2155706076 has 24 divisors (see below), whose sum is σ = 5037845904. Its totient is φ = 717445120.

The previous prime is 2155706071. The next prime is 2155706081. The reversal of 2155706076 is 6706075512.

It is an interprime number because it is at equal distance from previous prime (2155706071) and next prime (2155706081).

It is a super-2 number, since 2×2155706076² = 9294137372206635552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155706071) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 132435 + ... + 147818.

It is an arithmetic number, because the mean of its divisors is an integer number (209910246).

Almost surely, 2^2155706076 is an apocalyptic number.

It is an amenable number.

2155706076 is an abundant number, since it is smaller than the sum of its proper divisors (2882139828).

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

2155706076 is a wasteful number, since it uses less digits than its factorization.

2155706076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280901 (or 280899 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 2155706076 is about 46429.5819063665. The cubic root of 2155706076 is about 1291.8036736771.

The spelling of 2155706076 in words is "two billion, one hundred fifty-five million, seven hundred six thousand, seventy-six".