40020616155 has 32 divisors (see below), whose sum is σ = 68979951936. Its totient is φ = 19696356864.

The previous prime is 40020616117. The next prime is 40020616171. The reversal of 40020616155 is 55161602004.

40020616155 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 40020616155 - 2¹² = 40020612059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635469 + ... + 695601.

It is an arithmetic number, because the mean of its divisors is an integer number (2155623498).

Almost surely, 2^40020616155 is an apocalyptic number.

40020616155 is a deficient number, since it is larger than the sum of its proper divisors (28959335781).

40020616155 is a wasteful number, since it uses less digits than its factorization.

40020616155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63567.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 40020616155 in words is "forty billion, twenty million, six hundred sixteen thousand, one hundred fifty-five".