40131320452655 has 8 divisors (see below), whose sum is σ = 48162203152272. Its totient is φ = 32101977289408.

The previous prime is 40131320452651. The next prime is 40131320452723. The reversal of 40131320452655 is 55625402313104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40131320452655 - 2² = 40131320452651 is a prime.

It is a super-2 number, since 2×40131320452655² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131320452651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384826742 + ... + 384931011.

It is an arithmetic number, because the mean of its divisors is an integer number (6020275394034).

Almost surely, 2^{40131320452655} is an apocalyptic number.

40131320452655 is a deficient number, since it is larger than the sum of its proper divisors (8030882699617).

40131320452655 is a wasteful number, since it uses less digits than its factorization.

40131320452655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769768185.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 40131320452655 its reverse (55625402313104), we get a palindrome (95756722765759).

The spelling of 40131320452655 in words is "forty trillion, one hundred thirty-one billion, three hundred twenty million, four hundred fifty-two thousand, six hundred fifty-five".