16203312445 has 8 divisors (see below), whose sum is σ = 19444991544. Its totient is φ = 12961972224.

The previous prime is 16203312421. The next prime is 16203312457. The reversal of 16203312445 is 54421330261.

It can be written as a sum of positive squares in 4 ways, for example, as 6648445444 + 9554867001 = 81538^2 + 97749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16203312445 - 2¹¹ = 16203310397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36157 + ... + 183613.

It is an arithmetic number, because the mean of its divisors is an integer number (2430623943).

Almost surely, 2^16203312445 is an apocalyptic number.

It is an amenable number.

16203312445 is a deficient number, since it is larger than the sum of its proper divisors (3241679099).

16203312445 is a wasteful number, since it uses less digits than its factorization.

16203312445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169439.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 16203312445 in words is "sixteen billion, two hundred three million, three hundred twelve thousand, four hundred forty-five".