1011005501061 has 16 divisors (see below), whose sum is σ = 1351538311040. Its totient is φ = 672240098880.

The previous prime is 1011005501039. The next prime is 1011005501087. The reversal of 1011005501061 is 1601055001101.

It is a happy number.

It is not a de Polignac number, because 1011005501061 - 2¹⁸ = 1011005238917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011005501461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1875735 + ... + 2353803.

It is an arithmetic number, because the mean of its divisors is an integer number (84471144440).

Almost surely, 2^{1011005501061} is an apocalyptic number.

It is an amenable number.

1011005501061 is a deficient number, since it is larger than the sum of its proper divisors (340532809979).

1011005501061 is a wasteful number, since it uses less digits than its factorization.

1011005501061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479916.

The product of its (nonzero) digits is 150, while the sum is 21.

The spelling of 1011005501061 in words is "one trillion, eleven billion, five million, five hundred one thousand, sixty-one".