66023415122624 has 56 divisors (see below), whose sum is σ = 133253541870336. Its totient is φ = 32448455424000.

The previous prime is 66023415122519. The next prime is 66023415122653. The reversal of 66023415122624 is 42622151432066.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5597 + ... + 11491164.

Almost surely, 2^{66023415122624} is an apocalyptic number.

66023415122624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66023415122624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66626770935168).

66023415122624 is an abundant number, since it is smaller than the sum of its proper divisors (67230126747712).

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

66023415122624 is a wasteful number, since it uses less digits than its factorization.

66023415122624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498305 (or 11498295 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 66023415122624 in words is "sixty-six trillion, twenty-three billion, four hundred fifteen million, one hundred twenty-two thousand, six hundred twenty-four".