208422149517 has 96 divisors (see below), whose sum is σ = 329340211200. Its totient is φ = 131530246848.

The previous prime is 208422149473. The next prime is 208422149527. The reversal of 208422149517 is 715941224802.

208422149517 is a `hidden beast` number, since 20 + 84 + 22 + 14 + 9 + 517 = 666.

It is not a de Polignac number, because 208422149517 - 2¹⁴ = 208422133133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208422149527) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112842688 + ... + 112844534.

It is an arithmetic number, because the mean of its divisors is an integer number (3430627200).

Almost surely, 2^208422149517 is an apocalyptic number.

208422149517 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

208422149517 is a deficient number, since it is larger than the sum of its proper divisors (120918061683).

208422149517 is a wasteful number, since it uses less digits than its factorization.

208422149517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 208422149517 in words is "two hundred eight billion, four hundred twenty-two million, one hundred forty-nine thousand, five hundred seventeen".