9161351178408 has 384 divisors, whose sum is σ = 31204544716800. Its totient is φ = 2479948358400.

The previous prime is 9161351178401. The next prime is 9161351178431. The reversal of 9161351178408 is 8048711531619.

9161351178408 is a `hidden beast` number, since 9 + 1 + 6 + 13 + 51 + 178 + 408 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (9161351178401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8086213 + ... + 9149291.

It is an arithmetic number, because the mean of its divisors is an integer number (81261835200).

Almost surely, 2^{9161351178408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9161351178408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15602272358400).

9161351178408 is an abundant number, since it is smaller than the sum of its proper divisors (22043193538392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9161351178408 is a wasteful number, since it uses less digits than its factorization.

9161351178408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063155 (or 1063139 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 9161351178408 in words is "nine trillion, one hundred sixty-one billion, three hundred fifty-one million, one hundred seventy-eight thousand, four hundred eight".