90155336450 has 24 divisors (see below), whose sum is σ = 170531116560. Its totient is φ = 35450910800.

The previous prime is 90155336449. The next prime is 90155336461. The reversal of 90155336450 is 5463355109.

It is a super-3 number, since 3×90155336450³ (a number of 34 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90155336398 and 90155336407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15277616 + ... + 15283515.

It is an arithmetic number, because the mean of its divisors is an integer number (7105463190).

Almost surely, 2^90155336450 is an apocalyptic number.

90155336450 is a deficient number, since it is larger than the sum of its proper divisors (80375780110).

90155336450 is a wasteful number, since it uses less digits than its factorization.

90155336450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30561202 (or 30561197 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 90155336450 in words is "ninety billion, one hundred fifty-five million, three hundred thirty-six thousand, four hundred fifty".