1055326566 has 64 divisors (see below), whose sum is σ = 2477703168. Its totient is φ = 293424768.

The previous prime is 1055326529. The next prime is 1055326603. The reversal of 1055326566 is 6656235501.

It is an interprime number because it is at equal distance from previous prime (1055326529) and next prime (1055326603).

It is a super-2 number, since 2×1055326566² = 2227428321810704712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280836 + ... + 284568.

It is an arithmetic number, because the mean of its divisors is an integer number (38714112).

Almost surely, 2^1055326566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055326566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238851584).

1055326566 is an abundant number, since it is smaller than the sum of its proper divisors (1422376602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055326566 is a wasteful number, since it uses less digits than its factorization.

1055326566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 1055326566 is about 32485.7902166470. The cubic root of 1055326566 is about 1018.1121578390.

The spelling of 1055326566 in words is "one billion, fifty-five million, three hundred twenty-six thousand, five hundred sixty-six".