1466506591001 has 4 divisors (see below), whose sum is σ = 1467220916772. Its totient is φ = 1465792265232.

The previous prime is 1466506590973. The next prime is 1466506591019. The reversal of 1466506591001 is 1001956056641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228407526400 + 1238099064601 = 477920^2 + 1112699^2 .

It is a cyclic number.

It is not a de Polignac number, because 1466506591001 - 2¹⁸ = 1466506328857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1466506591051) 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, 357159806 + ... + 357163911.

It is an arithmetic number, because the mean of its divisors is an integer number (366805229193).

Almost surely, 2^{1466506591001} is an apocalyptic number.

It is an amenable number.

1466506591001 is a deficient number, since it is larger than the sum of its proper divisors (714325771).

1466506591001 is an equidigital number, since it uses as much as digits as its factorization.

1466506591001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714325770.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 1466506591001 in words is "one trillion, four hundred sixty-six billion, five hundred six million, five hundred ninety-one thousand, one".