220231058640 has 80 divisors (see below), whose sum is σ = 682880417856. Its totient is φ = 58714163200.

The previous prime is 220231058569. The next prime is 220231058659. The reversal of 220231058640 is 46850132022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909655 + ... + 1126025.

Almost surely, 2^220231058640 is an apocalyptic number.

220231058640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220231058640 is an abundant number, since it is smaller than the sum of its proper divisors (462649359216).

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

220231058640 is a wasteful number, since it uses less digits than its factorization.

220231058640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220628 (or 220622 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 220231058640 in words is "two hundred twenty billion, two hundred thirty-one million, fifty-eight thousand, six hundred forty".