611552354417 has 2 divisors, whose sum is σ = 611552354418. Its totient is φ = 611552354416.

The previous prime is 611552354401. The next prime is 611552354429. The reversal of 611552354417 is 714453255116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510540259441 + 101012094976 = 714521^2 + 317824^2 .

It is a cyclic number.

It is not a de Polignac number, because 611552354417 - 2⁴ = 611552354401 is a prime.

It is not a weakly prime, because it can be changed into another prime (611552354447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305776177208 + 305776177209.

It is an arithmetic number, because the mean of its divisors is an integer number (305776177209).

Almost surely, 2^611552354417 is an apocalyptic number.

It is an amenable number.

611552354417 is a deficient number, since it is larger than the sum of its proper divisors (1).

611552354417 is an equidigital number, since it uses as much as digits as its factorization.

611552354417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 44.

The spelling of 611552354417 in words is "six hundred eleven billion, five hundred fifty-two million, three hundred fifty-four thousand, four hundred seventeen".