40434633655 has 16 divisors (see below), whose sum is σ = 52629927840. Its totient is φ = 29644599168.

The previous prime is 40434633623. The next prime is 40434633661. The reversal of 40434633655 is 55633643404.

It is a cyclic number.

It is not a de Polignac number, because 40434633655 - 2⁵ = 40434633623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2228632 + ... + 2246701.

It is an arithmetic number, because the mean of its divisors is an integer number (3289370490).

Almost surely, 2^40434633655 is an apocalyptic number.

40434633655 is a deficient number, since it is larger than the sum of its proper divisors (12195294185).

40434633655 is a wasteful number, since it uses less digits than its factorization.

40434633655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475490.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 40434633655 in words is "forty billion, four hundred thirty-four million, six hundred thirty-three thousand, six hundred fifty-five".