40540606155 has 48 divisors (see below), whose sum is σ = 80446189824. Its totient is φ = 18501192000.

The previous prime is 40540606153. The next prime is 40540606157. The reversal of 40540606155 is 55160604504.

40540606155 is a `hidden beast` number, since 4 + 0 + 5 + 40 + 606 + 1 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (40540606153) and next prime (40540606157).

It is not a de Polignac number, because 40540606155 - 2¹ = 40540606153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40540606153) 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 47 ways as a sum of consecutive naturals, for example, 75280 + ... + 294530.

It is an arithmetic number, because the mean of its divisors is an integer number (1675962288).

Almost surely, 2^40540606155 is an apocalyptic number.

40540606155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40540606155 is a deficient number, since it is larger than the sum of its proper divisors (39905583669).

40540606155 is a wasteful number, since it uses less digits than its factorization.

40540606155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219856 (or 219853 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 40540606155 in words is "forty billion, five hundred forty million, six hundred six thousand, one hundred fifty-five".