168418526040 has 192 divisors, whose sum is σ = 579863512800. Its totient is φ = 42247458816.

The previous prime is 168418526039. The next prime is 168418526041. The reversal of 168418526040 is 40625814861.

It is a happy number.

168418526040 is a `hidden beast` number, since 1 + 6 + 84 + 1 + 8 + 526 + 0 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (168418526039) and next prime (168418526041).

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 (168418526041) 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, 13721026 + ... + 13733294.

Almost surely, 2^168418526040 is an apocalyptic number.

168418526040 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 168418526040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289931756400).

168418526040 is an abundant number, since it is smaller than the sum of its proper divisors (411444986760).

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

168418526040 is a wasteful number, since it uses less digits than its factorization.

168418526040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14546 (or 14539 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 168418526040 in words is "one hundred sixty-eight billion, four hundred eighteen million, five hundred twenty-six thousand, forty".