208055740368 has 80 divisors (see below), whose sum is σ = 615575600640. Its totient is φ = 59317162368.

The previous prime is 208055740363. The next prime is 208055740397. The reversal of 208055740368 is 863047550802.

It is a super-2 number, since 2×208055740368² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208055740363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506058 + ... + 819881.

It is an arithmetic number, because the mean of its divisors is an integer number (7694695008).

Almost surely, 2^208055740368 is an apocalyptic number.

208055740368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208055740368 is an abundant number, since it is smaller than the sum of its proper divisors (407519860272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208055740368 is a wasteful number, since it uses less digits than its factorization.

208055740368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326424 (or 1326418 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 208055740368 in words is "two hundred eight billion, fifty-five million, seven hundred forty thousand, three hundred sixty-eight".