90626801566 has 8 divisors (see below), whose sum is σ = 155360231280. Its totient is φ = 38840057808.

The previous prime is 90626801563. The next prime is 90626801569. The reversal of 90626801566 is 66510862609.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90626801563) and next prime (90626801569).

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 (90626801563) 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, 3236671471 + ... + 3236671498.

It is an arithmetic number, because the mean of its divisors is an integer number (19420028910).

Almost surely, 2^90626801566 is an apocalyptic number.

90626801566 is a deficient number, since it is larger than the sum of its proper divisors (64733429714).

90626801566 is a wasteful number, since it uses less digits than its factorization.

90626801566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473342978.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 90626801566 in words is "ninety billion, six hundred twenty-six million, eight hundred one thousand, five hundred sixty-six".