40566998785 has 8 divisors (see below), whose sum is σ = 48833966376. Its totient is φ = 32351220480.

The previous prime is 40566998707. The next prime is 40566998837. The reversal of 40566998785 is 58789966504.

40566998785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4882655376 + 35684343409 = 69876^2 + 188903^2 .

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

It is not a de Polignac number, because 40566998785 - 2¹³ = 40566990593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40566998785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12795576 + ... + 12798745.

It is an arithmetic number, because the mean of its divisors is an integer number (6104245797).

Almost surely, 2^40566998785 is an apocalyptic number.

It is an amenable number.

40566998785 is a deficient number, since it is larger than the sum of its proper divisors (8266967591).

40566998785 is a wasteful number, since it uses less digits than its factorization.

40566998785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594643.

The product of its (nonzero) digits is 130636800, while the sum is 67.

The spelling of 40566998785 in words is "forty billion, five hundred sixty-six million, nine hundred ninety-eight thousand, seven hundred eighty-five".