2155360612 has 6 divisors (see below), whose sum is σ = 3771881078. Its totient is φ = 1077680304.

The previous prime is 2155360607. The next prime is 2155360619. The reversal of 2155360612 is 2160635512.

It can be written as a sum of positive squares in only one way, i.e., 1703543076 + 451817536 = 41274^2 + 21256^2 .

It is a super-2 number, since 2×2155360612² = 9291158735522029088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2155360619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269420073 + ... + 269420080.

Almost surely, 2^2155360612 is an apocalyptic number.

It is an amenable number.

2155360612 is a deficient number, since it is larger than the sum of its proper divisors (1616520466).

2155360612 is a wasteful number, since it uses less digits than its factorization.

2155360612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538840157 (or 538840155 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2155360612 is about 46425.8614567355. The cubic root of 2155360612 is about 1291.7346637271.

The spelling of 2155360612 in words is "two billion, one hundred fifty-five million, three hundred sixty thousand, six hundred twelve".