208112157407 has 16 divisors (see below), whose sum is σ = 259726424064. Its totient is φ = 162001620000.

The previous prime is 208112157397. The next prime is 208112157427. The reversal of 208112157407 is 704751211802.

It is not a de Polignac number, because 208112157407 - 2¹⁸ = 208111895263 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 (208112157427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287344 + ... + 1439957.

It is an arithmetic number, because the mean of its divisors is an integer number (16232901504).

Almost surely, 2^208112157407 is an apocalyptic number.

208112157407 is a deficient number, since it is larger than the sum of its proper divisors (51614266657).

208112157407 is a wasteful number, since it uses less digits than its factorization.

208112157407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728310.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 208112157407 in words is "two hundred eight billion, one hundred twelve million, one hundred fifty-seven thousand, four hundred seven".