1564166055 has 8 divisors (see below), whose sum is σ = 2502665712. Its totient is φ = 834221888.

The previous prime is 1564166029. The next prime is 1564166057. The reversal of 1564166055 is 5506614651.

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 1564166055 - 2¹³ = 1564157863 is a prime.

It is a super-2 number, since 2×1564166055² = 4893230895228526050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564166057) 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 7 ways as a sum of consecutive naturals, for example, 52138854 + ... + 52138883.

It is an arithmetic number, because the mean of its divisors is an integer number (312833214).

Almost surely, 2^1564166055 is an apocalyptic number.

1564166055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1564166055 is a deficient number, since it is larger than the sum of its proper divisors (938499657).

1564166055 is a wasteful number, since it uses less digits than its factorization.

1564166055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104277745.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 1564166055 is about 39549.5392514249. The cubic root of 1564166055 is about 1160.8094961557.

The spelling of 1564166055 in words is "one billion, five hundred sixty-four million, one hundred sixty-six thousand, fifty-five".