90060720121208 has 32 divisors (see below), whose sum is σ = 172885701542400. Its totient is φ = 43959015286368.

The previous prime is 90060720121159. The next prime is 90060720121219. The reversal of 90060720121208 is 80212102706009.

It is a super-2 number, since 2×90060720121208² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71178818 + ... + 72433041.

It is an arithmetic number, because the mean of its divisors is an integer number (5402678173200).

Almost surely, 2^{90060720121208} is an apocalyptic number.

It is an amenable number.

90060720121208 is a deficient number, since it is larger than the sum of its proper divisors (82824981421192).

90060720121208 is a wasteful number, since it uses less digits than its factorization.

90060720121208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143613731 (or 143613727 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 90060720121208 in words is "ninety trillion, sixty billion, seven hundred twenty million, one hundred twenty-one thousand, two hundred eight".