66602575673496 has 192 divisors, whose sum is σ = 188995311648000. Its totient is φ = 21164531420160.

The previous prime is 66602575673471. The next prime is 66602575673533. The reversal of 66602575673496 is 69437657520666.

It is a super-2 number, since 2×66602575673496² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41297610 + ... + 42880038.

It is an arithmetic number, because the mean of its divisors is an integer number (984350581500).

Almost surely, 2^{66602575673496} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66602575673496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94497655824000).

66602575673496 is an abundant number, since it is smaller than the sum of its proper divisors (122392735974504).

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

66602575673496 is a wasteful number, since it uses less digits than its factorization.

66602575673496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582754 (or 1582747 counting only the distinct ones).

The product of its (nonzero) digits is 2057529600, while the sum is 72.

The spelling of 66602575673496 in words is "sixty-six trillion, six hundred two billion, five hundred seventy-five million, six hundred seventy-three thousand, four hundred ninety-six".