1055157665 has 8 divisors (see below), whose sum is σ = 1267954560. Its totient is φ = 842949232.

The previous prime is 1055157619. The next prime is 1055157667. The reversal of 1055157665 is 5667515501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055157665 - 2⁸ = 1055157409 is a prime.

It is a super-2 number, since 2×1055157665² = 2226715396016504450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1055157667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143159 + ... + 150348.

It is an arithmetic number, because the mean of its divisors is an integer number (158494320).

Almost surely, 2^1055157665 is an apocalyptic number.

It is an amenable number.

1055157665 is a deficient number, since it is larger than the sum of its proper divisors (212796895).

1055157665 is an equidigital number, since it uses as much as digits as its factorization.

1055157665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294231.

The product of its (nonzero) digits is 157500, while the sum is 41.

The square root of 1055157665 is about 32483.1904990874. The cubic root of 1055157665 is about 1018.0578399493.

The spelling of 1055157665 in words is "one billion, fifty-five million, one hundred fifty-seven thousand, six hundred sixty-five".