1326506601 has 16 divisors (see below), whose sum is σ = 2023937024. Its totient is φ = 757031184.

The previous prime is 1326506569. The next prime is 1326506611. The reversal of 1326506601 is 1066056231.

It is not a de Polignac number, because 1326506601 - 2⁵ = 1326506569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1326506611) 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, 23605 + ... + 56658.

It is an arithmetic number, because the mean of its divisors is an integer number (126496064).

Almost surely, 2^1326506601 is an apocalyptic number.

It is an amenable number.

1326506601 is a deficient number, since it is larger than the sum of its proper divisors (697430423).

1326506601 is an equidigital number, since it uses as much as digits as its factorization.

1326506601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81060.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1326506601 is about 36421.2383232641. The cubic root of 1326506601 is about 1098.7607534401.

The spelling of 1326506601 in words is "one billion, three hundred twenty-six million, five hundred six thousand, six hundred one".