1065216507 has 8 divisors (see below), whose sum is σ = 1450507776. Its totient is φ = 695034792.

The previous prime is 1065216469. The next prime is 1065216521. The reversal of 1065216507 is 7056125601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1065216507 - 2¹⁰ = 1065215483 is a prime.

It is a super-2 number, since 2×1065216507² = 2269372413570562098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065216527) 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, 3777223 + ... + 3777504.

It is an arithmetic number, because the mean of its divisors is an integer number (181313472).

Almost surely, 2^1065216507 is an apocalyptic number.

1065216507 is a deficient number, since it is larger than the sum of its proper divisors (385291269).

1065216507 is an equidigital number, since it uses as much as digits as its factorization.

1065216507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554777.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1065216507 is about 32637.6547411115. The cubic root of 1065216507 is about 1021.2826702698.

The spelling of 1065216507 in words is "one billion, sixty-five million, two hundred sixteen thousand, five hundred seven".