1066245357 has 4 divisors (see below), whose sum is σ = 1421660480. Its totient is φ = 710830236.

The previous prime is 1066245347. The next prime is 1066245371. The reversal of 1066245357 is 7535426601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1066245357 is a prime.

It is a super-2 number, since 2×1066245357² = 2273758322648114898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066245347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177707557 + ... + 177707562.

It is an arithmetic number, because the mean of its divisors is an integer number (355415120).

Almost surely, 2^1066245357 is an apocalyptic number.

It is an amenable number.

1066245357 is a deficient number, since it is larger than the sum of its proper divisors (355415123).

1066245357 is an equidigital number, since it uses as much as digits as its factorization.

1066245357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355415122.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 1066245357 is about 32653.4126394164. The cubic root of 1066245357 is about 1021.6113698216.

The spelling of 1066245357 in words is "one billion, sixty-six million, two hundred forty-five thousand, three hundred fifty-seven".