263220043441652 has 72 divisors (see below), whose sum is σ = 534082912866048. Its totient is φ = 112549776768000.

The previous prime is 263220043441583. The next prime is 263220043441657. The reversal of 263220043441652 is 256144340022362.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263220043441657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19503968 + ... + 30113864.

Almost surely, 2^{263220043441652} is an apocalyptic number.

263220043441652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

263220043441652 is an abundant number, since it is smaller than the sum of its proper divisors (270862869424396).

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

263220043441652 is a wasteful number, since it uses less digits than its factorization.

263220043441652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611897 (or 10611878 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 263220043441652 in words is "two hundred sixty-three trillion, two hundred twenty billion, forty-three million, four hundred forty-one thousand, six hundred fifty-two".