20256183360 has 336 divisors, whose sum is σ = 79881984000. Its totient is φ = 4615114752.

The previous prime is 20256183307. The next prime is 20256183377. The reversal of 20256183360 is 6338165202.

It is a happy number.

20256183360 is a `hidden beast` number, since 2 + 0 + 2 + 5 + 618 + 3 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7034401 + ... + 7037279.

It is an arithmetic number, because the mean of its divisors is an integer number (237744000).

Almost surely, 2^20256183360 is an apocalyptic number.

20256183360 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 20256183360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39940992000).

20256183360 is an abundant number, since it is smaller than the sum of its proper divisors (59625800640).

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

20256183360 is a wasteful number, since it uses less digits than its factorization.

20256183360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3245 counting only the distinct ones).

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

The spelling of 20256183360 in words is "twenty billion, two hundred fifty-six million, one hundred eighty-three thousand, three hundred sixty".