183368782420 has 12 divisors (see below), whose sum is σ = 385074443124. Its totient is φ = 73347512960.

The previous prime is 183368782409. The next prime is 183368782459. The reversal of 183368782420 is 24287863381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20401551556 + 162967230864 = 142834^2 + 403692^2 .

It is a super-2 number, since 2×183368782420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4584219541 + ... + 4584219580.

It is an arithmetic number, because the mean of its divisors is an integer number (32089536927).

Almost surely, 2^183368782420 is an apocalyptic number.

183368782420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

183368782420 is an abundant number, since it is smaller than the sum of its proper divisors (201705660704).

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

183368782420 is a wasteful number, since it uses less digits than its factorization.

183368782420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168439130 (or 9168439128 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 183368782420 in words is "one hundred eighty-three billion, three hundred sixty-eight million, seven hundred eighty-two thousand, four hundred twenty".