8616155385477 has 32 divisors (see below), whose sum is σ = 11773039032832. Its totient is φ = 5602092560064.

The previous prime is 8616155385469. The next prime is 8616155385521. The reversal of 8616155385477 is 7745835516168.

It is not a de Polignac number, because 8616155385477 - 2³ = 8616155385469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8616155785477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649435998 + ... + 649449264.

It is an arithmetic number, because the mean of its divisors is an integer number (367907469776).

Almost surely, 2^{8616155385477} is an apocalyptic number.

It is an amenable number.

8616155385477 is a deficient number, since it is larger than the sum of its proper divisors (3156883647355).

8616155385477 is a wasteful number, since it uses less digits than its factorization.

8616155385477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20497.

The product of its digits is 169344000, while the sum is 66.

The spelling of 8616155385477 in words is "eight trillion, six hundred sixteen billion, one hundred fifty-five million, three hundred eighty-five thousand, four hundred seventy-seven".