204554377511 has 32 divisors (see below), whose sum is σ = 238881377280. Its totient is φ = 173184739200.

The previous prime is 204554377481. The next prime is 204554377523. The reversal of 204554377511 is 115773455402.

It is a de Polignac number, because none of the positive numbers 2^k-204554377511 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 (204554377211) 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 31 ways as a sum of consecutive naturals, for example, 30377501 + ... + 30384233.

It is an arithmetic number, because the mean of its divisors is an integer number (7465043040).

Almost surely, 2^204554377511 is an apocalyptic number.

204554377511 is a deficient number, since it is larger than the sum of its proper divisors (34326999769).

204554377511 is a wasteful number, since it uses less digits than its factorization.

204554377511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9207.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 204554377511 in words is "two hundred four billion, five hundred fifty-four million, three hundred seventy-seven thousand, five hundred eleven".