66206151600 has 120 divisors (see below), whose sum is σ = 212487893952. Its totient is φ = 17621049600.

The previous prime is 66206151593. The next prime is 66206151629. The reversal of 66206151600 is 615160266.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 574855 + ... + 680345.

Almost surely, 2^66206151600 is an apocalyptic number.

66206151600 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 66206151600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106243946976).

66206151600 is an abundant number, since it is smaller than the sum of its proper divisors (146281742352).

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

66206151600 is a wasteful number, since it uses less digits than its factorization.

66206151600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106035 (or 106024 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 66206151600 in words is "sixty-six billion, two hundred six million, one hundred fifty-one thousand, six hundred".