66162270545 has 32 divisors (see below), whose sum is σ = 93964147200. Its totient is φ = 43758038016.

The previous prime is 66162270541. The next prime is 66162270571. The reversal of 66162270545 is 54507226166.

It is not a de Polignac number, because 66162270545 - 2² = 66162270541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66162270496 and 66162270505.

It is not an unprimeable number, because it can be changed into a prime (66162270541) 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 31 ways as a sum of consecutive naturals, for example, 947801 + ... + 1015209.

It is an arithmetic number, because the mean of its divisors is an integer number (2936379600).

Almost surely, 2^66162270545 is an apocalyptic number.

It is an amenable number.

66162270545 is a deficient number, since it is larger than the sum of its proper divisors (27801876655).

66162270545 is a wasteful number, since it uses less digits than its factorization.

66162270545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68417.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 66162270545 in words is "sixty-six billion, one hundred sixty-two million, two hundred seventy thousand, five hundred forty-five".