1061967555 has 24 divisors (see below), whose sum is σ = 2008085040. Its totient is φ = 514893120.

The previous prime is 1061967547. The next prime is 1061967607. The reversal of 1061967555 is 5557691601.

1061967555 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 96 + 7 + 555 = 666.

It is not a de Polignac number, because 1061967555 - 2³ = 1061967547 is a prime.

It is a super-2 number, since 2×1061967555² = 2255550175745356050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1061967555.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1072200 + ... + 1073189.

It is an arithmetic number, because the mean of its divisors is an integer number (83670210).

Almost surely, 2^1061967555 is an apocalyptic number.

1061967555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061967555 is a deficient number, since it is larger than the sum of its proper divisors (946117485).

1061967555 is a wasteful number, since it uses less digits than its factorization.

1061967555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145411 (or 2145408 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 1061967555 is about 32587.8436690739. The cubic root of 1061967555 is about 1020.2432954812.

The spelling of 1061967555 in words is "one billion, sixty-one million, nine hundred sixty-seven thousand, five hundred fifty-five".