803720667541 has 16 divisors (see below), whose sum is σ = 893397185280. Its totient is φ = 716814745920.

The previous prime is 803720667539. The next prime is 803720667577. The reversal of 803720667541 is 145766027308.

It is a cyclic number.

It is not a de Polignac number, because 803720667541 - 2¹ = 803720667539 is a prime.

It is a super-2 number, since 2×803720667541² (a number of 25 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 (803720665541) 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 15 ways as a sum of consecutive naturals, for example, 8956291 + ... + 9045583.

It is an arithmetic number, because the mean of its divisors is an integer number (55837324080).

Almost surely, 2^803720667541 is an apocalyptic number.

It is an amenable number.

803720667541 is a deficient number, since it is larger than the sum of its proper divisors (89676517739).

803720667541 is a wasteful number, since it uses less digits than its factorization.

803720667541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104796.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 803720667541 in words is "eight hundred three billion, seven hundred twenty million, six hundred sixty-seven thousand, five hundred forty-one".