1066252020 has 48 divisors (see below), whose sum is σ = 2986925760. Its totient is φ = 284198656.

The previous prime is 1066251973. The next prime is 1066252021. The reversal of 1066252020 is 202526601.

It is a super-2 number, since 2×1066252020² = 2273786740308160800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066252021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233479 + ... + 238001.

It is an arithmetic number, because the mean of its divisors is an integer number (62227620).

Almost surely, 2^1066252020 is an apocalyptic number.

1066252020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066252020 is an abundant number, since it is smaller than the sum of its proper divisors (1920673740).

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

1066252020 is a wasteful number, since it uses less digits than its factorization.

1066252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464 (or 8462 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1066252020 is about 32653.5146653465. The cubic root of 1066252020 is about 1021.6134978441.

Adding to 1066252020 its reverse (202526601), we get a palindrome (1268778621).

The spelling of 1066252020 in words is "one billion, sixty-six million, two hundred fifty-two thousand, twenty".