90081493582501 has 8 divisors (see below), whose sum is σ = 92179628493920. Its totient is φ = 87983504873712.

The previous prime is 90081493582489. The next prime is 90081493582573. The reversal of 90081493582501 is 10528539418009.

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 90081493582501 - 2⁷ = 90081493582373 is a prime.

It is a super-2 number, since 2×90081493582501² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90081493582601) 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, 35303535 + ... + 37769068.

It is an arithmetic number, because the mean of its divisors is an integer number (11522453561740).

Almost surely, 2^{90081493582501} is an apocalyptic number.

It is an amenable number.

90081493582501 is a deficient number, since it is larger than the sum of its proper divisors (2098134911419).

90081493582501 is a wasteful number, since it uses less digits than its factorization.

90081493582501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73101315.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 90081493582501 in words is "ninety trillion, eighty-one billion, four hundred ninety-three million, five hundred eighty-two thousand, five hundred one".