23220147001555 has 8 divisors (see below), whose sum is σ = 31844773030752. Its totient is φ = 15922386515328.

The previous prime is 23220147001451. The next prime is 23220147001559. The reversal of 23220147001555 is 55510074102232.

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 23220147001555 - 2¹⁷ = 23220146870483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23220147001559) 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, 331716385702 + ... + 331716385771.

It is an arithmetic number, because the mean of its divisors is an integer number (3980596628844).

Almost surely, 2^{23220147001555} is an apocalyptic number.

23220147001555 is a deficient number, since it is larger than the sum of its proper divisors (8624626029197).

23220147001555 is an equidigital number, since it uses as much as digits as its factorization.

23220147001555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663432771485.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 23220147001555 in words is "twenty-three trillion, two hundred twenty billion, one hundred forty-seven million, one thousand, five hundred fifty-five".