90190016012 has 24 divisors (see below), whose sum is σ = 173362963200. Its totient is φ = 40864125456.

The previous prime is 90190016011. The next prime is 90190016041. The reversal of 90190016012 is 21061009109.

It is not an unprimeable number, because it can be changed into a prime (90190016011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25796312 + ... + 25799807.

It is an arithmetic number, because the mean of its divisors is an integer number (7223456800).

Almost surely, 2^90190016012 is an apocalyptic number.

90190016012 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90190016012 is a deficient number, since it is larger than the sum of its proper divisors (83172947188).

90190016012 is a wasteful number, since it uses less digits than its factorization.

90190016012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51596165 (or 51596163 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 90190016012 in words is "ninety billion, one hundred ninety million, sixteen thousand, twelve".