66073222580015 has 16 divisors (see below), whose sum is σ = 90624775104000. Its totient is φ = 45302317700640.

The previous prime is 66073222579957. The next prime is 66073222580063. The reversal of 66073222580015 is 51008522237066.

It is not a de Polignac number, because 66073222580015 - 2¹⁰ = 66073222578991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104574821 + ... + 105204750.

It is an arithmetic number, because the mean of its divisors is an integer number (5664048444000).

Almost surely, 2^{66073222580015} is an apocalyptic number.

66073222580015 is a deficient number, since it is larger than the sum of its proper divisors (24551552523985).

66073222580015 is a wasteful number, since it uses less digits than its factorization.

66073222580015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209788582.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 66073222580015 in words is "sixty-six trillion, seventy-three billion, two hundred twenty-two million, five hundred eighty thousand, fifteen".