40356660325 has 6 divisors (see below), whose sum is σ = 50042258834. Its totient is φ = 32285328240.

The previous prime is 40356660263. The next prime is 40356660329. The reversal of 40356660325 is 52306665304.

It can be written as a sum of positive squares in 3 ways, for example, as 3443107684 + 36913552641 = 58678^2 + 192129^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40356660325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40356660329) 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 5 ways as a sum of consecutive naturals, for example, 807133182 + ... + 807133231.

Almost surely, 2^40356660325 is an apocalyptic number.

It is an amenable number.

40356660325 is a deficient number, since it is larger than the sum of its proper divisors (9685598509).

40356660325 is a wasteful number, since it uses less digits than its factorization.

40356660325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614266423 (or 1614266418 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 40356660325 in words is "forty billion, three hundred fifty-six million, six hundred sixty thousand, three hundred twenty-five".