1006555655 has 16 divisors (see below), whose sum is σ = 1393826304. Its totient is φ = 683506080.

The previous prime is 1006555651. The next prime is 1006555657. The reversal of 1006555655 is 5565556001.

It is not a de Polignac number, because 1006555655 - 2² = 1006555651 is a prime.

It is a super-2 number, since 2×1006555655² = 2026308573224958050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006555651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136001 + ... + 143210.

It is an arithmetic number, because the mean of its divisors is an integer number (87114144).

Almost surely, 2^1006555655 is an apocalyptic number.

1006555655 is a deficient number, since it is larger than the sum of its proper divisors (387270649).

1006555655 is a wasteful number, since it uses less digits than its factorization.

1006555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279326.

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 1006555655 is about 31726.2612830444. The cubic root of 1006555655 is about 1002.1804604699.

The spelling of 1006555655 in words is "one billion, six million, five hundred fifty-five thousand, six hundred fifty-five".