20303264612280 has 512 divisors, whose sum is σ = 67071807129600. Its totient is φ = 4886302924800.

The previous prime is 20303264612263. The next prime is 20303264612297. The reversal of 20303264612280 is 8221646230302.

It is an interprime number because it is at equal distance from previous prime (20303264612263) and next prime (20303264612297).

It is a super-2 number, since 2×20303264612280² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18609774535 + ... + 18609775625.

It is an arithmetic number, because the mean of its divisors is an integer number (130999623300).

Almost surely, 2^{20303264612280} is an apocalyptic number.

20303264612280 is a gapful number since it is divisible by the number (20) 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 20303264612280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33535903564800).

20303264612280 is an abundant number, since it is smaller than the sum of its proper divisors (46768542517320).

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

20303264612280 is a wasteful number, since it uses less digits than its factorization.

20303264612280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 20303264612280 in words is "twenty trillion, three hundred three billion, two hundred sixty-four million, six hundred twelve thousand, two hundred eighty".