208148231955 has 8 divisors (see below), whose sum is σ = 333037171152. Its totient is φ = 111012390368.

The previous prime is 208148231947. The next prime is 208148231971. The reversal of 208148231955 is 559132841802.

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 208148231955 - 2³ = 208148231947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6938274384 + ... + 6938274413.

It is an arithmetic number, because the mean of its divisors is an integer number (41629646394).

Almost surely, 2^208148231955 is an apocalyptic number.

208148231955 is a deficient number, since it is larger than the sum of its proper divisors (124888939197).

208148231955 is a wasteful number, since it uses less digits than its factorization.

208148231955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13876548805.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 208148231955 in words is "two hundred eight billion, one hundred forty-eight million, two hundred thirty-one thousand, nine hundred fifty-five".