216573576007 has 2 divisors, whose sum is σ = 216573576008. Its totient is φ = 216573576006.

The previous prime is 216573575971. The next prime is 216573576029. The reversal of 216573576007 is 700675375612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216573576007 is a prime.

It is a super-2 number, since 2×216573576007² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216573576067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108286788003 + 108286788004.

It is an arithmetic number, because the mean of its divisors is an integer number (108286788004).

Almost surely, 2^216573576007 is an apocalyptic number.

216573576007 is a deficient number, since it is larger than the sum of its proper divisors (1).

216573576007 is an equidigital number, since it uses as much as digits as its factorization.

216573576007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 216573576007 in words is "two hundred sixteen billion, five hundred seventy-three million, five hundred seventy-six thousand, seven".