38166820470 has 96 divisors (see below), whose sum is σ = 101706388992. Its totient is φ = 9925759296.

The previous prime is 38166820469. The next prime is 38166820477. The reversal of 38166820470 is 7402866183.

38166820470 is a `hidden beast` number, since 381 + 6 + 68 + 204 + 7 + 0 = 666.

It is a super-2 number, since 2×38166820470² (a number of 22 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 not an unprimeable number, because it can be changed into a prime (38166820477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1181149 + ... + 1213031.

It is an arithmetic number, because the mean of its divisors is an integer number (1059441552).

Almost surely, 2^38166820470 is an apocalyptic number.

38166820470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38166820470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50853194496).

38166820470 is an abundant number, since it is smaller than the sum of its proper divisors (63539568522).

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

38166820470 is a wasteful number, since it uses less digits than its factorization.

38166820470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32226 (or 32223 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

It can be divided in two parts, 3816 and 6820470, that added together give a palindrome (6824286).

The spelling of 38166820470 in words is "thirty-eight billion, one hundred sixty-six million, eight hundred twenty thousand, four hundred seventy".