145011500220 has 24 divisors (see below), whose sum is σ = 406032200784. Its totient is φ = 38669733376.

The previous prime is 145011500189. The next prime is 145011500239. The reversal of 145011500220 is 22005110541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208429109 + ... + 1208429228.

It is an arithmetic number, because the mean of its divisors is an integer number (16918008366).

Almost surely, 2^145011500220 is an apocalyptic number.

145011500220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145011500220 is an abundant number, since it is smaller than the sum of its proper divisors (261020700564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145011500220 is a wasteful number, since it uses less digits than its factorization.

145011500220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416858349 (or 2416858347 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 145011500220 its reverse (22005110541), we get a palindrome (167016610761).

The spelling of 145011500220 in words is "one hundred forty-five billion, eleven million, five hundred thousand, two hundred twenty".