204534022651 has 4 divisors (see below), whose sum is σ = 233753168752. Its totient is φ = 175314876552.

The previous prime is 204534022631. The next prime is 204534022663. The reversal of 204534022651 is 156220435402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204534022651 - 2⁷ = 204534022523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204534022631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14609573040 + ... + 14609573053.

It is an arithmetic number, because the mean of its divisors is an integer number (58438292188).

Almost surely, 2^204534022651 is an apocalyptic number.

204534022651 is a deficient number, since it is larger than the sum of its proper divisors (29219146101).

204534022651 is an equidigital number, since it uses as much as digits as its factorization.

204534022651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29219146100.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 204534022651 in words is "two hundred four billion, five hundred thirty-four million, twenty-two thousand, six hundred fifty-one".