90549145005 has 16 divisors (see below), whose sum is σ = 158049417024. Its totient is φ = 43902615680.

The previous prime is 90549144979. The next prime is 90549145007. The reversal of 90549145005 is 50054194509.

It is not a de Polignac number, because 90549145005 - 2¹² = 90549140909 is a prime.

It is a super-2 number, since 2×90549145005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90549145007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274391184 + ... + 274391513.

It is an arithmetic number, because the mean of its divisors is an integer number (9878088564).

Almost surely, 2^90549145005 is an apocalyptic number.

It is an amenable number.

90549145005 is a deficient number, since it is larger than the sum of its proper divisors (67500272019).

90549145005 is a wasteful number, since it uses less digits than its factorization.

90549145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548782716.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 90549145005 in words is "ninety billion, five hundred forty-nine million, one hundred forty-five thousand, five".