66536156160 has 352 divisors, whose sum is σ = 239823244800. Its totient is φ = 17490493440.

The previous prime is 66536156147. The next prime is 66536156173. The reversal of 66536156160 is 6165163566.

66536156160 is a `hidden beast` number, since 6 + 6 + 536 + 1 + 56 + 1 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (66536156147) and next prime (66536156173).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9811651 + ... + 9818429.

Almost surely, 2^66536156160 is an apocalyptic number.

66536156160 is a gapful number since it is divisible by the number (60) 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 66536156160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119911622400).

66536156160 is an abundant number, since it is smaller than the sum of its proper divisors (173287088640).

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

66536156160 is a wasteful number, since it uses less digits than its factorization.

66536156160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884 (or 6860 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 66536156160 in words is "sixty-six billion, five hundred thirty-six million, one hundred fifty-six thousand, one hundred sixty".