203651165432 has 128 divisors (see below), whose sum is σ = 452239200000. Its totient is φ = 84757847040.

The previous prime is 203651165363. The next prime is 203651165437. The reversal of 203651165432 is 234561156302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203651165437) 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, 102182228 + ... + 102184220.

It is an arithmetic number, because the mean of its divisors is an integer number (3533118750).

Almost surely, 2^203651165432 is an apocalyptic number.

203651165432 is a gapful number since it is divisible by the number (22) 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 203651165432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226119600000).

203651165432 is an abundant number, since it is smaller than the sum of its proper divisors (248588034568).

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

203651165432 is a wasteful number, since it uses less digits than its factorization.

203651165432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2697 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 203651165432 in words is "two hundred three billion, six hundred fifty-one million, one hundred sixty-five thousand, four hundred thirty-two".