355426644553 has 2 divisors, whose sum is σ = 355426644554. Its totient is φ = 355426644552.

The previous prime is 355426644541. The next prime is 355426644571. The reversal of 355426644553 is 355446624553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355177857024 + 248787529 = 595968^2 + 15773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355426644553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 355426644553.

It is not a weakly prime, because it can be changed into another prime (355426654553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177713322276 + 177713322277.

It is an arithmetic number, because the mean of its divisors is an integer number (177713322277).

Almost surely, 2^355426644553 is an apocalyptic number.

It is an amenable number.

355426644553 is a deficient number, since it is larger than the sum of its proper divisors (1).

355426644553 is an equidigital number, since it uses as much as digits as its factorization.

355426644553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920000, while the sum is 52.

The spelling of 355426644553 in words is "three hundred fifty-five billion, four hundred twenty-six million, six hundred forty-four thousand, five hundred fifty-three".