72155607066711 has 12 divisors (see below), whose sum is σ = 119114018014992. Its totient is φ = 41231775466656.

The previous prime is 72155607066703. The next prime is 72155607066731. The reversal of 72155607066711 is 11766070655127.

72155607066711 is a `hidden beast` number, since 7 + 2 + 1 + 5 + 560 + 7 + 0 + 6 + 6 + 71 + 1 = 666.

It is not a de Polignac number, because 72155607066711 - 2³ = 72155607066703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72155607066731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572663548086 + ... + 572663548211.

It is an arithmetic number, because the mean of its divisors is an integer number (9926168167916).

Almost surely, 2^{72155607066711} is an apocalyptic number.

72155607066711 is a deficient number, since it is larger than the sum of its proper divisors (46958410948281).

72155607066711 is a wasteful number, since it uses less digits than its factorization.

72155607066711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145327096310 (or 1145327096307 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 54.

The spelling of 72155607066711 in words is "seventy-two trillion, one hundred fifty-five billion, six hundred seven million, sixty-six thousand, seven hundred eleven".