90466066409 has 4 divisors (see below), whose sum is σ = 91949116740. Its totient is φ = 88983016080.

The previous prime is 90466066393. The next prime is 90466066441.

It is a happy number.

90466066409 is nontrivially palindromic in base 10.

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 38192103184 + 52273963225 = 195428^2 + 228635^2 .

It is a cyclic number.

It is not a de Polignac number, because 90466066409 - 2⁴ = 90466066393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90466066489) 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, 741525074 + ... + 741525195.

It is an arithmetic number, because the mean of its divisors is an integer number (22987279185).

Almost surely, 2^90466066409 is an apocalyptic number.

It is an amenable number.

90466066409 is a deficient number, since it is larger than the sum of its proper divisors (1483050331).

90466066409 is a wasteful number, since it uses less digits than its factorization.

90466066409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483050330.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 90466066409 in words is "ninety billion, four hundred sixty-six million, sixty-six thousand, four hundred nine".