40136312560 has 40 divisors (see below), whose sum is σ = 96327156096. Its totient is φ = 15536636160.

The previous prime is 40136312527. The next prime is 40136312561. The reversal of 40136312560 is 6521363104.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×40136312560² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136312561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8089519 + ... + 8094478.

Almost surely, 2^40136312560 is an apocalyptic number.

40136312560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40136312560 is an abundant number, since it is smaller than the sum of its proper divisors (56190843536).

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

40136312560 is a wasteful number, since it uses less digits than its factorization.

40136312560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16184041 (or 16184035 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 40136312560 its reverse (6521363104), we get a palindrome (46657675664).

The spelling of 40136312560 in words is "forty billion, one hundred thirty-six million, three hundred twelve thousand, five hundred sixty".