40001136000 has 1024 divisors, whose sum is σ = 164975616000. Its totient is φ = 8365670400.

The previous prime is 40001135989. The next prime is 40001136001. The reversal of 40001136000 is 63110004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001136001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 268463926 + ... + 268464074.

It is an arithmetic number, because the mean of its divisors is an integer number (161109000).

Almost surely, 2^40001136000 is an apocalyptic number.

40001136000 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 40001136000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82487808000).

40001136000 is an abundant number, since it is smaller than the sum of its proper divisors (124974480000).

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

40001136000 is a wasteful number, since it uses less digits than its factorization.

40001136000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 40001136000 its reverse (63110004), we get a palindrome (40064246004).

The spelling of 40001136000 in words is "forty billion, one million, one hundred thirty-six thousand".