1061645216 has 24 divisors (see below), whose sum is σ = 2200121280. Its totient is φ = 502884288.

The previous prime is 1061645149. The next prime is 1061645231. The reversal of 1061645216 is 6125461601.

It is a super-2 number, since 2×1061645216² = 2254181129311373312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 872456 + ... + 873671.

It is an arithmetic number, because the mean of its divisors is an integer number (91671720).

Almost surely, 2^1061645216 is an apocalyptic number.

1061645216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1061645216 is an abundant number, since it is smaller than the sum of its proper divisors (1138476064).

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

1061645216 is a wasteful number, since it uses less digits than its factorization.

1061645216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746156 (or 1746148 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1061645216 is about 32582.8975998145. The cubic root of 1061645216 is about 1020.1400602235.

The spelling of 1061645216 in words is "one billion, sixty-one million, six hundred forty-five thousand, two hundred sixteen".