40015313550 has 96 divisors (see below), whose sum is σ = 112610649600. Its totient is φ = 10443696480.

The previous prime is 40015313549. The next prime is 40015313581. The reversal of 40015313550 is 5531351004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 251880 + ... + 378779.

It is an arithmetic number, because the mean of its divisors is an integer number (1173027600).

Almost surely, 2^40015313550 is an apocalyptic number.

40015313550 is an abundant number, since it is smaller than the sum of its proper divisors (72595336050).

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

40015313550 is a wasteful number, since it uses less digits than its factorization.

40015313550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630727 (or 630716 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 40015313550 its reverse (5531351004), we get a palindrome (45546664554).

The spelling of 40015313550 in words is "forty billion, fifteen million, three hundred thirteen thousand, five hundred fifty".