6625858503617 has 2 divisors, whose sum is σ = 6625858503618. Its totient is φ = 6625858503616.

The previous prime is 6625858503599. The next prime is 6625858503629. The reversal of 6625858503617 is 7163058585266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3467699454976 + 3158159048641 = 1862176^2 + 1777121^2 .

It is a cyclic number.

It is not a de Polignac number, because 6625858503617 - 2⁸ = 6625858503361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6625858503617.

It is not a weakly prime, because it can be changed into another prime (6625858523617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312929251808 + 3312929251809.

It is an arithmetic number, because the mean of its divisors is an integer number (3312929251809).

Almost surely, 2^{6625858503617} is an apocalyptic number.

It is an amenable number.

6625858503617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6625858503617 is an equidigital number, since it uses as much as digits as its factorization.

6625858503617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 6625858503617 in words is "six trillion, six hundred twenty-five billion, eight hundred fifty-eight million, five hundred three thousand, six hundred seventeen".