90243337158 has 24 divisors (see below), whose sum is σ = 210567787248. Its totient is φ = 27767180592.

The previous prime is 90243337157. The next prime is 90243337159. The reversal of 90243337158 is 85173334209.

It is an interprime number because it is at equal distance from previous prime (90243337157) and next prime (90243337159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90243337157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192827410 + ... + 192827877.

It is an arithmetic number, because the mean of its divisors is an integer number (8773657802).

Almost surely, 2^90243337158 is an apocalyptic number.

90243337158 is an abundant number, since it is smaller than the sum of its proper divisors (120324450090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90243337158 is a wasteful number, since it uses less digits than its factorization.

90243337158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385655308 (or 385655305 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 90243337158 in words is "ninety billion, two hundred forty-three million, three hundred thirty-seven thousand, one hundred fifty-eight".