66765552045315 has 32 divisors (see below), whose sum is σ = 106933175279616. Its totient is φ = 35572214171520.

The previous prime is 66765552045307. The next prime is 66765552045319. The reversal of 66765552045315 is 51354025556766.

It is not a de Polignac number, because 66765552045315 - 2³ = 66765552045307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66765552045319) 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 31 ways as a sum of consecutive naturals, for example, 62250129 + ... + 63313581.

It is an arithmetic number, because the mean of its divisors is an integer number (3341661727488).

Almost surely, 2^{66765552045315} is an apocalyptic number.

66765552045315 is a deficient number, since it is larger than the sum of its proper divisors (40167623234301).

66765552045315 is a wasteful number, since it uses less digits than its factorization.

66765552045315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067699.

The product of its (nonzero) digits is 113400000, while the sum is 60.

The spelling of 66765552045315 in words is "sixty-six trillion, seven hundred sixty-five billion, five hundred fifty-two million, forty-five thousand, three hundred fifteen".