10203605556479 has 2 divisors, whose sum is σ = 10203605556480. Its totient is φ = 10203605556478.

The previous prime is 10203605556449. The next prime is 10203605556491. The reversal of 10203605556479 is 97465550630201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10203605556479 - 2²⁸ = 10203337121023 is a prime.

It is a super-2 number, since 2×10203605556479² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10203605556479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203605556409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101802778239 + 5101802778240.

It is an arithmetic number, because the mean of its divisors is an integer number (5101802778240).

Almost surely, 2^{10203605556479} is an apocalyptic number.

10203605556479 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203605556479 is an equidigital number, since it uses as much as digits as its factorization.

10203605556479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 10203605556479 in words is "ten trillion, two hundred three billion, six hundred five million, five hundred fifty-six thousand, four hundred seventy-nine".