90156608006399 has 8 divisors (see below), whose sum is σ = 98785934926848. Its totient is φ = 81599493027160.

The previous prime is 90156608006389. The next prime is 90156608006417. The reversal of 90156608006399 is 99360080665109.

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 90156608006399 - 2⁴ = 90156608006383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90156608006369) 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, 18052982687 + ... + 18052987680.

It is an arithmetic number, because the mean of its divisors is an integer number (12348241865856).

Almost surely, 2^{90156608006399} is an apocalyptic number.

90156608006399 is a deficient number, since it is larger than the sum of its proper divisors (8629326920449).

90156608006399 is a wasteful number, since it uses less digits than its factorization.

90156608006399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105970605.

The product of its (nonzero) digits is 18895680, while the sum is 62.

The spelling of 90156608006399 in words is "ninety trillion, one hundred fifty-six billion, six hundred eight million, six thousand, three hundred ninety-nine".