166733451020 has 96 divisors (see below), whose sum is σ = 382893267456. Its totient is φ = 60714086400.

The previous prime is 166733451011. The next prime is 166733451041. The reversal of 166733451020 is 20154337661.

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 31 ways as a sum of consecutive naturals, for example, 33525254 + ... + 33530226.

It is an arithmetic number, because the mean of its divisors is an integer number (3988471536).

Almost surely, 2^166733451020 is an apocalyptic number.

166733451020 is a gapful number since it is divisible by the number (10) 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 166733451020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191446633728).

166733451020 is an abundant number, since it is smaller than the sum of its proper divisors (216159816436).

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

166733451020 is a wasteful number, since it uses less digits than its factorization.

166733451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211 (or 8209 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 166733451020 its reverse (20154337661), we get a palindrome (186887788681).

The spelling of 166733451020 in words is "one hundred sixty-six billion, seven hundred thirty-three million, four hundred fifty-one thousand, twenty".