16903691320501 has 8 divisors (see below), whose sum is σ = 17222125892184. Its totient is φ = 16588218931200.

The previous prime is 16903691320441. The next prime is 16903691320577. The reversal of 16903691320501 is 10502319630961.

It can be written as a sum of positive squares in 4 ways, for example, as 2998802207025 + 13904889113476 = 1731705^2 + 3728926^2 .

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 16903691320501 - 2³⁵ = 16869331582133 is a prime.

It is a super-2 number, since 2×16903691320501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16903691330501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740534076 + ... + 740556901.

It is an arithmetic number, because the mean of its divisors is an integer number (2152765736523).

Almost surely, 2^{16903691320501} is an apocalyptic number.

It is an amenable number.

16903691320501 is a deficient number, since it is larger than the sum of its proper divisors (318434571683).

16903691320501 is a wasteful number, since it uses less digits than its factorization.

16903691320501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481091191.

The product of its (nonzero) digits is 262440, while the sum is 46.

The spelling of 16903691320501 in words is "sixteen trillion, nine hundred three billion, six hundred ninety-one million, three hundred twenty thousand, five hundred one".