206445431148 has 96 divisors (see below), whose sum is σ = 531724284672. Its totient is φ = 62336799360.

The previous prime is 206445431141. The next prime is 206445431221. The reversal of 206445431148 is 841134544602.

It is not an unprimeable number, because it can be changed into a prime (206445431141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4497240 + ... + 4542912.

It is an arithmetic number, because the mean of its divisors is an integer number (5538794632).

Almost surely, 2^206445431148 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 206445431148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265862142336).

206445431148 is an abundant number, since it is smaller than the sum of its proper divisors (325278853524).

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

206445431148 is a wasteful number, since it uses less digits than its factorization.

206445431148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45996 (or 45972 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 206445431148 in words is "two hundred six billion, four hundred forty-five million, four hundred thirty-one thousand, one hundred forty-eight".