188470456020 has 384 divisors, whose sum is σ = 744838778880. Its totient is φ = 38423324160.

The previous prime is 188470456007. The next prime is 188470456039. The reversal of 188470456020 is 20654074881.

188470456020 is a `hidden beast` number, since 1 + 8 + 84 + 7 + 0 + 4 + 560 + 2 + 0 = 666.

It is a super-2 number, since 2×188470456020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2160979 + ... + 2246501.

It is an arithmetic number, because the mean of its divisors is an integer number (1939684320).

Almost surely, 2^188470456020 is an apocalyptic number.

188470456020 is a gapful number since it is divisible by the number (10) 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 188470456020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372419389440).

188470456020 is an abundant number, since it is smaller than the sum of its proper divisors (556368322860).

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

188470456020 is a wasteful number, since it uses less digits than its factorization.

188470456020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85612 (or 85604 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 188470456020 in words is "one hundred eighty-eight billion, four hundred seventy million, four hundred fifty-six thousand, twenty".