7216721610103 has 8 divisors (see below), whose sum is σ = 7308658022400. Its totient is φ = 7124799835608.

The previous prime is 7216721610071. The next prime is 7216721610121. The reversal of 7216721610103 is 3010161276127.

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 7216721610103 - 2⁵ = 7216721610071 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7216721610503) 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, 2665423 + ... + 4640896.

It is an arithmetic number, because the mean of its divisors is an integer number (913582252800).

Almost surely, 2^{7216721610103} is an apocalyptic number.

7216721610103 is a deficient number, since it is larger than the sum of its proper divisors (91936412297).

7216721610103 is a wasteful number, since it uses less digits than its factorization.

7216721610103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7318901.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 7216721610103 in words is "seven trillion, two hundred sixteen billion, seven hundred twenty-one million, six hundred ten thousand, one hundred three".