15455664212 has 6 divisors (see below), whose sum is σ = 27047412378. Its totient is φ = 7727832104.

The previous prime is 15455664149. The next prime is 15455664221. The reversal of 15455664212 is 21246655451.

15455664212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15157549456 + 298114756 = 123116^2 + 17266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15455664212.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1931958023 + ... + 1931958030.

It is an arithmetic number, because the mean of its divisors is an integer number (4507902063).

Almost surely, 2^15455664212 is an apocalyptic number.

It is an amenable number.

15455664212 is a deficient number, since it is larger than the sum of its proper divisors (11591748166).

15455664212 is a wasteful number, since it uses less digits than its factorization.

15455664212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863916057 (or 3863916055 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The spelling of 15455664212 in words is "fifteen billion, four hundred fifty-five million, six hundred sixty-four thousand, two hundred twelve".