40221066615 has 32 divisors (see below), whose sum is σ = 68242901760. Its totient is φ = 20158677504.

The previous prime is 40221066593. The next prime is 40221066619. The reversal of 40221066615 is 51666012204.

It is not a de Polignac number, because 40221066615 - 2⁵ = 40221066583 is a prime.

It is a super-3 number, since 3×40221066615³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221066619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48372 + ... + 287718.

It is an arithmetic number, because the mean of its divisors is an integer number (2132590680).

Almost surely, 2^40221066615 is an apocalyptic number.

40221066615 is a deficient number, since it is larger than the sum of its proper divisors (28021835145).

40221066615 is a wasteful number, since it uses less digits than its factorization.

40221066615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240031.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 40221066615 its reverse (51666012204), we get a palindrome (91887078819).

The spelling of 40221066615 in words is "forty billion, two hundred twenty-one million, sixty-six thousand, six hundred fifteen".