161170633274040 has 384 divisors, whose sum is σ = 598462070169600. Its totient is φ = 37288785300480.

The previous prime is 161170633274003. The next prime is 161170633274081. The reversal of 161170633274040 is 40472336071161.

161170633274040 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 7 + 0 + 633 + 2 + 7 + 4 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 4156875 + ... + 18428805.

It is an arithmetic number, because the mean of its divisors is an integer number (1558494974400).

Almost surely, 2^{161170633274040} is an apocalyptic number.

161170633274040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161170633274040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299231035084800).

161170633274040 is an abundant number, since it is smaller than the sum of its proper divisors (437291436895560).

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

161170633274040 is a wasteful number, since it uses less digits than its factorization.

161170633274040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272107 (or 14272100 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 161170633274040 in words is "one hundred sixty-one trillion, one hundred seventy billion, six hundred thirty-three million, two hundred seventy-four thousand, forty".