40121032605 has 64 divisors (see below), whose sum is σ = 68509808640. Its totient is φ = 19991321856.

The previous prime is 40121032573. The next prime is 40121032663. The reversal of 40121032605 is 50623012104.

It is not a de Polignac number, because 40121032605 - 2⁵ = 40121032573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17196019 + ... + 17198351.

It is an arithmetic number, because the mean of its divisors is an integer number (1070465760).

Almost surely, 2^40121032605 is an apocalyptic number.

It is an amenable number.

40121032605 is a deficient number, since it is larger than the sum of its proper divisors (28388776035).

40121032605 is a wasteful number, since it uses less digits than its factorization.

40121032605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 40121032605 its reverse (50623012104), we get a palindrome (90744044709).

The spelling of 40121032605 in words is "forty billion, one hundred twenty-one million, thirty-two thousand, six hundred five".