660122064448 has 56 divisors (see below), whose sum is σ = 1633159145664. Its totient is φ = 257190412800.

The previous prime is 660122064443. The next prime is 660122064463. The reversal of 660122064448 is 844460221066.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×660122064448² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (660122064443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66971743 + ... + 66981598.

Almost surely, 2^660122064448 is an apocalyptic number.

It is an amenable number.

660122064448 is an abundant number, since it is smaller than the sum of its proper divisors (973037081216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660122064448 is a wasteful number, since it uses less digits than its factorization.

660122064448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133953371 (or 133953361 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 660122064448 in words is "six hundred sixty billion, one hundred twenty-two million, sixty-four thousand, four hundred forty-eight".