220493154312 has 36 divisors (see below), whose sum is σ = 597179750895. Its totient is φ = 73496389968.

The previous prime is 220493154311. The next prime is 220493154341. The reversal of 220493154312 is 213451394022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

220493154312 is a `hidden beast` number, since 2 + 2 + 0 + 493 + 154 + 3 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110246577156 + 110246577156 = 332034^2 + 332034^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332034.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (220493154311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3956739 + ... + 4012077.

Almost surely, 2^220493154312 is an apocalyptic number.

It is an amenable number.

220493154312 is an abundant number, since it is smaller than the sum of its proper divisors (376686596583).

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

220493154312 is an frugal number, since it uses more digits than its factorization.

220493154312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110690 (or 55344 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 220493154312 in words is "two hundred twenty billion, four hundred ninety-three million, one hundred fifty-four thousand, three hundred twelve".