90925165443 has 128 divisors (see below), whose sum is σ = 148709965824. Its totient is φ = 48337228800.

The previous prime is 90925165423. The next prime is 90925165447. The reversal of 90925165443 is 34456152909.

It is a Cunningham number, because it is equal to 301538²-1.

It is not a de Polignac number, because 90925165443 - 2¹⁰ = 90925164419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90925165392 and 90925165401.

It is not an unprimeable number, because it can be changed into a prime (90925165447) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 525578905 + ... + 525579077.

It is an arithmetic number, because the mean of its divisors is an integer number (1161796608).

Almost surely, 2^90925165443 is an apocalyptic number.

90925165443 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

90925165443 is a deficient number, since it is larger than the sum of its proper divisors (57784800381).

90925165443 is a wasteful number, since it uses less digits than its factorization.

90925165443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 90925165443 in words is "ninety billion, nine hundred twenty-five million, one hundred sixty-five thousand, four hundred forty-three".