654210160561 has 2 divisors, whose sum is σ = 654210160562. Its totient is φ = 654210160560.

The previous prime is 654210160507. The next prime is 654210160603. The reversal of 654210160561 is 165061012456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361657904400 + 292552256161 = 601380^2 + 540881^2 .

It is a cyclic number.

It is not a de Polignac number, because 654210160561 - 2²³ = 654201771953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654210160561.

It is not a weakly prime, because it can be changed into another prime (654210160061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327105080280 + 327105080281.

It is an arithmetic number, because the mean of its divisors is an integer number (327105080281).

Almost surely, 2^654210160561 is an apocalyptic number.

It is an amenable number.

654210160561 is a deficient number, since it is larger than the sum of its proper divisors (1).

654210160561 is an equidigital number, since it uses as much as digits as its factorization.

654210160561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 654210160561 in words is "six hundred fifty-four billion, two hundred ten million, one hundred sixty thousand, five hundred sixty-one".