1061006105999 has 4 divisors (see below), whose sum is σ = 1212578406864. Its totient is φ = 909433805136.

The previous prime is 1061006105993. The next prime is 1061006106019. The reversal of 1061006105999 is 9995016001601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1061006105999 - 2⁴ = 1061006105983 is a prime.

It is a super-2 number, since 2×1061006105999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061006105993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75786150422 + ... + 75786150435.

It is an arithmetic number, because the mean of its divisors is an integer number (303144601716).

Almost surely, 2^{1061006105999} is an apocalyptic number.

1061006105999 is a deficient number, since it is larger than the sum of its proper divisors (151572300865).

1061006105999 is an equidigital number, since it uses as much as digits as its factorization.

1061006105999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151572300864.

The product of its (nonzero) digits is 131220, while the sum is 47.

The spelling of 1061006105999 in words is "one trillion, sixty-one billion, six million, one hundred five thousand, nine hundred ninety-nine".