203436661002 has 16 divisors (see below), whose sum is σ = 407216110752. Its totient is φ = 67755088880.

The previous prime is 203436660989. The next prime is 203436661003. The reversal of 203436661002 is 200166634302.

203436661002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203436661003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14275149 + ... + 14289392.

It is an arithmetic number, because the mean of its divisors is an integer number (25451006922).

Almost surely, 2^203436661002 is an apocalyptic number.

203436661002 is an abundant number, since it is smaller than the sum of its proper divisors (203779449750).

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

203436661002 is a wasteful number, since it uses less digits than its factorization.

203436661002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28565733.

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 203436661002 in words is "two hundred three billion, four hundred thirty-six million, six hundred sixty-one thousand, two".