40351636655 has 96 divisors (see below), whose sum is σ = 57683612160. Its totient is φ = 26806208000.

The previous prime is 40351636649. The next prime is 40351636673. The reversal of 40351636655 is 55663615304.

40351636655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40351636655 - 2¹⁴ = 40351620271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 399521105 + ... + 399521205.

It is an arithmetic number, because the mean of its divisors is an integer number (600870960).

Almost surely, 2^40351636655 is an apocalyptic number.

40351636655 is a deficient number, since it is larger than the sum of its proper divisors (17331975505).

40351636655 is a wasteful number, since it uses less digits than its factorization.

40351636655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 40351636655 in words is "forty billion, three hundred fifty-one million, six hundred thirty-six thousand, six hundred fifty-five".