1069855680 has 112 divisors (see below), whose sum is σ = 3432108960. Its totient is φ = 282329088.

The previous prime is 1069855669. The next prime is 1069855691. The reversal of 1069855680 is 865589601.

It is an interprime number because it is at equal distance from previous prime (1069855669) and next prime (1069855691).

It is a super-2 number, since 2×1069855680² = 2289182352056524800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87376 + ... + 98864.

It is an arithmetic number, because the mean of its divisors is an integer number (30643830).

Almost surely, 2^1069855680 is an apocalyptic number.

1069855680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1069855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716054480).

1069855680 is an abundant number, since it is smaller than the sum of its proper divisors (2362253280).

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

1069855680 is a wasteful number, since it uses less digits than its factorization.

1069855680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11606 (or 11596 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 1069855680 is about 32708.6483976333. The cubic root of 1069855680 is about 1022.7631347138.

The spelling of 1069855680 in words is "one billion, sixty-nine million, eight hundred fifty-five thousand, six hundred eighty".