90905220950 has 12 divisors (see below), whose sum is σ = 169083711060. Its totient is φ = 36362088360.

The previous prime is 90905220949. The next prime is 90905221007. The reversal of 90905220950 is 5902250909.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90905220898 and 90905220907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 909052160 + ... + 909052259.

It is an arithmetic number, because the mean of its divisors is an integer number (14090309255).

Almost surely, 2^90905220950 is an apocalyptic number.

90905220950 is a deficient number, since it is larger than the sum of its proper divisors (78178490110).

90905220950 is a wasteful number, since it uses less digits than its factorization.

90905220950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818104431 (or 1818104426 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 41.

The spelling of 90905220950 in words is "ninety billion, nine hundred five million, two hundred twenty thousand, nine hundred fifty".