91643576633222 has 16 divisors (see below), whose sum is σ = 137480001431760. Its totient is φ = 45816909765792.

The previous prime is 91643576633221. The next prime is 91643576633291. The reversal of 91643576633222 is 22233667534619.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91643576633221) 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, 1024902188 + ... + 1024991600.

It is an arithmetic number, because the mean of its divisors is an integer number (8592500089485).

Almost surely, 2^{91643576633222} is an apocalyptic number.

91643576633222 is a deficient number, since it is larger than the sum of its proper divisors (45836424798538).

91643576633222 is a wasteful number, since it uses less digits than its factorization.

91643576633222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138247.

The product of its digits is 58786560, while the sum is 59.

The spelling of 91643576633222 in words is "ninety-one trillion, six hundred forty-three billion, five hundred seventy-six million, six hundred thirty-three thousand, two hundred twenty-two".