40002151520000 has 180 divisors, whose sum is σ = 99895430573400. Its totient is φ = 15982047744000.

The previous prime is 40002151519969. The next prime is 40002151520011. The reversal of 40002151520000 is 2515120004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136333451 + ... + 136626549.

Almost surely, 2^{40002151520000} is an apocalyptic number.

40002151520000 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 40002151520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49947715286700).

40002151520000 is an abundant number, since it is smaller than the sum of its proper divisors (59893279053400).

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

40002151520000 is an frugal number, since it uses more digits than its factorization.

40002151520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293988 (or 293959 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 40002151520000 its reverse (2515120004), we get a palindrome (40004666640004).

The spelling of 40002151520000 in words is "forty trillion, two billion, one hundred fifty-one million, five hundred twenty thousand".