40432131555 has 16 divisors (see below), whose sum is σ = 64696934304. Its totient is φ = 21561962240.

The previous prime is 40432131541. The next prime is 40432131563. The reversal of 40432131555 is 55513123404.

It is not a de Polignac number, because 40432131555 - 2¹³ = 40432123363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76765 + ... + 294545.

It is an arithmetic number, because the mean of its divisors is an integer number (4043558394).

Almost surely, 2^40432131555 is an apocalyptic number.

40432131555 is a deficient number, since it is larger than the sum of its proper divisors (24264802749).

40432131555 is a wasteful number, since it uses less digits than its factorization.

40432131555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230166.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 40432131555 its reverse (55513123404), we get a palindrome (95945254959).

The spelling of 40432131555 in words is "forty billion, four hundred thirty-two million, one hundred thirty-one thousand, five hundred fifty-five".