220155145249243 has 8 divisors (see below), whose sum is σ = 220169973230480. Its totient is φ = 220140317721600.

The previous prime is 220155145249157. The next prime is 220155145249253. The reversal of 220155145249243 is 342942541551022.

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 220155145249243 - 2²⁵ = 220155111694811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220155145249253) 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, 1971476896 + ... + 1971588562.

It is an arithmetic number, because the mean of its divisors is an integer number (27521246653810).

Almost surely, 2^{220155145249243} is an apocalyptic number.

220155145249243 is a deficient number, since it is larger than the sum of its proper divisors (14827981237).

220155145249243 is a wasteful number, since it uses less digits than its factorization.

220155145249243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226797.

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 220155145249243 in words is "two hundred twenty trillion, one hundred fifty-five billion, one hundred forty-five million, two hundred forty-nine thousand, two hundred forty-three".