1055801566 has 8 divisors (see below), whose sum is σ = 1589420520. Its totient is φ = 525994728.

The previous prime is 1055801563. The next prime is 1055801567. The reversal of 1055801566 is 6651085501.

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

It is a super-3 number, since 3×1055801566³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055801563) 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, 952336 + ... + 953443.

It is an arithmetic number, because the mean of its divisors is an integer number (198677565).

Almost surely, 2^1055801566 is an apocalyptic number.

1055801566 is a deficient number, since it is larger than the sum of its proper divisors (533618954).

1055801566 is a wasteful number, since it uses less digits than its factorization.

1055801566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906058.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 1055801566 is about 32493.1002829832. The cubic root of 1055801566 is about 1018.2648848882.

The spelling of 1055801566 in words is "one billion, fifty-five million, eight hundred one thousand, five hundred sixty-six".