611552354401 has 2 divisors, whose sum is σ = 611552354402. Its totient is φ = 611552354400.

The previous prime is 611552354383. The next prime is 611552354417. The reversal of 611552354401 is 104453255116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608743248400 + 2809106001 = 780220^2 + 53001^2 .

It is a cyclic number.

It is not a de Polignac number, because 611552354401 - 2²¹ = 611550257249 is a prime.

It is not a weakly prime, because it can be changed into another prime (611552354461) 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 as a sum of consecutive naturals, namely, 305776177200 + 305776177201.

It is an arithmetic number, because the mean of its divisors is an integer number (305776177201).

Almost surely, 2^611552354401 is an apocalyptic number.

It is an amenable number.

611552354401 is a deficient number, since it is larger than the sum of its proper divisors (1).

611552354401 is an equidigital number, since it uses as much as digits as its factorization.

611552354401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 611552354401 in words is "six hundred eleven billion, five hundred fifty-two million, three hundred fifty-four thousand, four hundred one".