1055165663 has 4 divisors (see below), whose sum is σ = 1056538560. Its totient is φ = 1053792768.

The previous prime is 1055165659. The next prime is 1055165717. The reversal of 1055165663 is 3665615501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3665615501 = 23 ⋅159374587.

It is a cyclic number.

It is not a de Polignac number, because 1055165663 - 2² = 1055165659 is a prime.

It is a super-2 number, since 2×1055165663² = 2226749152748459138, which 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 (1055165623) 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 3 ways as a sum of consecutive naturals, for example, 685295 + ... + 686832.

It is an arithmetic number, because the mean of its divisors is an integer number (264134640).

Almost surely, 2^1055165663 is an apocalyptic number.

1055165663 is a deficient number, since it is larger than the sum of its proper divisors (1372897).

1055165663 is an equidigital number, since it uses as much as digits as its factorization.

1055165663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372896.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 1055165663 is about 32483.3136086822. The cubic root of 1055165663 is about 1018.0604122050.

The spelling of 1055165663 in words is "one billion, fifty-five million, one hundred sixty-five thousand, six hundred sixty-three".