1061366820 has 24 divisors (see below), whose sum is σ = 2971827264. Its totient is φ = 283031136.

The previous prime is 1061366819. The next prime is 1061366821. The reversal of 1061366820 is 286631601.

It is an interprime number because it is at equal distance from previous prime (1061366819) and next prime (1061366821).

It is a super-2 number, since 2×1061366820² = 2252999053193824800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061366821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8844664 + ... + 8844783.

It is an arithmetic number, because the mean of its divisors is an integer number (123826136).

Almost surely, 2^1061366820 is an apocalyptic number.

1061366820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061366820 is an abundant number, since it is smaller than the sum of its proper divisors (1910460444).

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

1061366820 is a wasteful number, since it uses less digits than its factorization.

1061366820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17689459 (or 17689457 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1061366820 is about 32578.6252011960. The cubic root of 1061366820 is about 1020.0508817370.

The spelling of 1061366820 in words is "one billion, sixty-one million, three hundred sixty-six thousand, eight hundred twenty".