103553551999 has 2 divisors, whose sum is σ = 103553552000. Its totient is φ = 103553551998.

The previous prime is 103553551979. The next prime is 103553552017. The reversal of 103553551999 is 999155355301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103553551999 - 2⁵ = 103553551967 is a prime.

It is a super-3 number, since 3×103553551999³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103553551909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51776775999 + 51776776000.

It is an arithmetic number, because the mean of its divisors is an integer number (51776776000).

Almost surely, 2^103553551999 is an apocalyptic number.

103553551999 is a deficient number, since it is larger than the sum of its proper divisors (1).

103553551999 is an equidigital number, since it uses as much as digits as its factorization.

103553551999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4100625, while the sum is 55.

The spelling of 103553551999 in words is "one hundred three billion, five hundred fifty-three million, five hundred fifty-one thousand, nine hundred ninety-nine".