1955003241905 has 12 divisors (see below), whose sum is σ = 2729024933940. Its totient is φ = 1340573651424.

The previous prime is 1955003241889. The next prime is 1955003241943. The reversal of 1955003241905 is 5091423005591.

It can be written as a sum of positive squares in 2 ways, for example, as 401073956416 + 1553929285489 = 633304^2 + 1246567^2 .

It is not a de Polignac number, because 1955003241905 - 2⁴ = 1955003241889 is a prime.

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, 3989802290 + ... + 3989802779.

It is an arithmetic number, because the mean of its divisors is an integer number (227418744495).

Almost surely, 2^{1955003241905} is an apocalyptic number.

It is an amenable number.

1955003241905 is a deficient number, since it is larger than the sum of its proper divisors (774021692035).

1955003241905 is an equidigital number, since it uses as much as digits as its factorization.

1955003241905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979605088 (or 7979605081 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 1955003241905 in words is "one trillion, nine hundred fifty-five billion, three million, two hundred forty-one thousand, nine hundred five".