40620729155 has 16 divisors (see below), whose sum is σ = 49537699200. Its totient is φ = 31970964480.

The previous prime is 40620729139. The next prime is 40620729167. The reversal of 40620729155 is 55192702604.

40620729155 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 40620729155 - 2⁴ = 40620729139 is a prime.

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, 71990 + ... + 293979.

It is an arithmetic number, because the mean of its divisors is an integer number (3096106200).

Almost surely, 2^40620729155 is an apocalyptic number.

40620729155 is a deficient number, since it is larger than the sum of its proper divisors (8916970045).

40620729155 is a wasteful number, since it uses less digits than its factorization.

40620729155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366334.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 40620729155 in words is "forty billion, six hundred twenty million, seven hundred twenty-nine thousand, one hundred fifty-five".