40161132251285 has 16 divisors (see below), whose sum is σ = 48679061348592. Its totient is φ = 31805215680000.

The previous prime is 40161132251263. The next prime is 40161132251311. The reversal of 40161132251285 is 58215223116104.

It can be written as a sum of positive squares in 8 ways, for example, as 9992938867921 + 30168193383364 = 3161161^2 + 5492558^2 .

It is not a de Polignac number, because 40161132251285 - 2²⁴ = 40161115474069 is a prime.

It is a super-2 number, since 2×40161132251285² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4095824 + ... + 9853833.

It is an arithmetic number, because the mean of its divisors is an integer number (3042441334287).

Almost surely, 2^{40161132251285} is an apocalyptic number.

It is an amenable number.

40161132251285 is a deficient number, since it is larger than the sum of its proper divisors (8517929097307).

40161132251285 is a wasteful number, since it uses less digits than its factorization.

40161132251285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13955464.

The product of its (nonzero) digits is 115200, while the sum is 41.

Adding to 40161132251285 its reverse (58215223116104), we get a palindrome (98376355367389).

The spelling of 40161132251285 in words is "forty trillion, one hundred sixty-one billion, one hundred thirty-two million, two hundred fifty-one thousand, two hundred eighty-five".