204901516077 has 16 divisors (see below), whose sum is σ = 273985757760. Its totient is φ = 136209520512.

The previous prime is 204901516033. The next prime is 204901516093. The reversal of 204901516077 is 770615109402.

It is a happy number.

204901516077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204901516077 - 2¹² = 204901511981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204901516097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2171913 + ... + 2264289.

It is an arithmetic number, because the mean of its divisors is an integer number (17124109860).

Almost surely, 2^204901516077 is an apocalyptic number.

It is an amenable number.

204901516077 is a deficient number, since it is larger than the sum of its proper divisors (69084241683).

204901516077 is a wasteful number, since it uses less digits than its factorization.

204901516077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94492.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 204901516077 in words is "two hundred four billion, nine hundred one million, five hundred sixteen thousand, seventy-seven".