23364221640155 has 32 divisors (see below), whose sum is σ = 31917580858368. Its totient is φ = 16252419568000.

The previous prime is 23364221640139. The next prime is 23364221640173. The reversal of 23364221640155 is 55104612246332.

It is not a de Polignac number, because 23364221640155 - 2⁴ = 23364221640139 is a prime.

It is a super-3 number, since 3×23364221640155³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21416777 + ... + 22481253.

It is an arithmetic number, because the mean of its divisors is an integer number (997424401824).

Almost surely, 2^{23364221640155} is an apocalyptic number.

23364221640155 is a deficient number, since it is larger than the sum of its proper divisors (8553359218213).

23364221640155 is a wasteful number, since it uses less digits than its factorization.

23364221640155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081867.

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 23364221640155 its reverse (55104612246332), we get a palindrome (78468833886487).

The spelling of 23364221640155 in words is "twenty-three trillion, three hundred sixty-four billion, two hundred twenty-one million, six hundred forty thousand, one hundred fifty-five".