90136445633 has 8 divisors (see below), whose sum is σ = 97077908928. Its totient is φ = 83196109584.

The previous prime is 90136445611. The next prime is 90136445719. The reversal of 90136445633 is 33654463109.

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

It is a cyclic number.

It is not a de Polignac number, because 90136445633 - 2³² = 85841478337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90136445933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111935 + ... + 439092.

It is an arithmetic number, because the mean of its divisors is an integer number (12134738616).

Almost surely, 2^90136445633 is an apocalyptic number.

It is an amenable number.

90136445633 is a deficient number, since it is larger than the sum of its proper divisors (6941463295).

90136445633 is a wasteful number, since it uses less digits than its factorization.

90136445633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563623.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 90136445633 in words is "ninety billion, one hundred thirty-six million, four hundred forty-five thousand, six hundred thirty-three".