40861820160 has 864 divisors, whose sum is σ = 175492541952. Its totient is φ = 8564244480.

The previous prime is 40861820159. The next prime is 40861820183. The reversal of 40861820160 is 6102816804.

40861820160 is a `hidden beast` number, since 4 + 0 + 8 + 618 + 20 + 16 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56205717 + ... + 56206443.

It is an arithmetic number, because the mean of its divisors is an integer number (203116368).

Almost surely, 2^40861820160 is an apocalyptic number.

40861820160 is a gapful number since it is divisible by the number (40) 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 40861820160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87746270976).

40861820160 is an abundant number, since it is smaller than the sum of its proper divisors (134630721792).

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

40861820160 is a wasteful number, since it uses less digits than its factorization.

40861820160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 40861820160 in words is "forty billion, eight hundred sixty-one million, eight hundred twenty thousand, one hundred sixty".