90090840766 has 8 divisors (see below), whose sum is σ = 135268620984. Its totient is φ = 45001300440.

The previous prime is 90090840761. The next prime is 90090840767. The reversal of 90090840766 is 66704809009.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90090840761) 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, 22057420 + ... + 22061503.

It is an arithmetic number, because the mean of its divisors is an integer number (16908577623).

Almost surely, 2^90090840766 is an apocalyptic number.

90090840766 is a deficient number, since it is larger than the sum of its proper divisors (45177780218).

90090840766 is a wasteful number, since it uses less digits than its factorization.

90090840766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44119946.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 90090840766 in words is "ninety billion, ninety million, eight hundred forty thousand, seven hundred sixty-six".