1005561055546 has 8 divisors (see below), whose sum is σ = 1508354033760. Its totient is φ = 502776377628.

The previous prime is 1005561055537. The next prime is 1005561055547. The reversal of 1005561055546 is 6455501655001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1005561055546² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005561055547) 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, 1762806 + ... + 2262433.

It is an arithmetic number, because the mean of its divisors is an integer number (188544254220).

Almost surely, 2^{1005561055546} is an apocalyptic number.

1005561055546 is a deficient number, since it is larger than the sum of its proper divisors (502792978214).

1005561055546 is a wasteful number, since it uses less digits than its factorization.

1005561055546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150148.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 1005561055546 in words is "one trillion, five billion, five hundred sixty-one million, fifty-five thousand, five hundred forty-six".