207220465517 has 16 divisors (see below), whose sum is σ = 223497695232. Its totient is φ = 190991623680.

The previous prime is 207220465513. The next prime is 207220465547. The reversal of 207220465517 is 715564022702.

It is not a de Polignac number, because 207220465517 - 2² = 207220465513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207220465513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46595588 + ... + 46600034.

It is an arithmetic number, because the mean of its divisors is an integer number (13968605952).

Almost surely, 2^207220465517 is an apocalyptic number.

It is an amenable number.

207220465517 is a deficient number, since it is larger than the sum of its proper divisors (16277229715).

207220465517 is a wasteful number, since it uses less digits than its factorization.

207220465517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9068.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 207220465517 in words is "two hundred seven billion, two hundred twenty million, four hundred sixty-five thousand, five hundred seventeen".