9910920435550 has 24 divisors (see below), whose sum is σ = 18435026908656. Its totient is φ = 3964214432640.

The previous prime is 9910920435539. The next prime is 9910920435571. The reversal of 9910920435550 is 555340290199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536954 + ... + 5124253.

It is an arithmetic number, because the mean of its divisors is an integer number (768126121194).

Almost surely, 2^{9910920435550} is an apocalyptic number.

9910920435550 is a deficient number, since it is larger than the sum of its proper divisors (8524106473106).

9910920435550 is a wasteful number, since it uses less digits than its factorization.

9910920435550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687092 (or 7687087 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 9910920435550 in words is "nine trillion, nine hundred ten billion, nine hundred twenty million, four hundred thirty-five thousand, five hundred fifty".