302261643064020 has 96 divisors (see below), whose sum is σ = 856654134497280. Its totient is φ = 79620384481920.

The previous prime is 302261643063971. The next prime is 302261643064021. The reversal of 302261643064020 is 20460346162203.

It is a super-2 number, since 2×302261643064020² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 302261643064020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302261643064021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29800821 + ... + 38634339.

It is an arithmetic number, because the mean of its divisors is an integer number (8923480567680).

Almost surely, 2^{302261643064020} is an apocalyptic number.

302261643064020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302261643064020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428327067248640).

302261643064020 is an abundant number, since it is smaller than the sum of its proper divisors (554392491433260).

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

302261643064020 is a wasteful number, since it uses less digits than its factorization.

302261643064020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840485 (or 8840483 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 302261643064020 in words is "three hundred two trillion, two hundred sixty-one billion, six hundred forty-three million, sixty-four thousand, twenty".