1010505561009 has 32 divisors (see below), whose sum is σ = 1621988352000. Its totient is φ = 546660140544.

The previous prime is 1010505560989. The next prime is 1010505561017. The reversal of 1010505561009 is 9001655050101.

It is not a de Polignac number, because 1010505561009 - 2¹² = 1010505556913 is a prime.

It is a super-2 number, since 2×1010505561009² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1010505561409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305824 + ... + 1454145.

It is an arithmetic number, because the mean of its divisors is an integer number (50687136000).

Almost surely, 2^{1010505561009} is an apocalyptic number.

1010505561009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1010505561009 is a deficient number, since it is larger than the sum of its proper divisors (611482790991).

1010505561009 is a wasteful number, since it uses less digits than its factorization.

1010505561009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761437.

The product of its (nonzero) digits is 6750, while the sum is 33.

The spelling of 1010505561009 in words is "one trillion, ten billion, five hundred five million, five hundred sixty-one thousand, nine".