158178162651168 has 384 divisors, whose sum is σ = 478281174626304. Its totient is φ = 45304853299200.

The previous prime is 158178162651149. The next prime is 158178162651263. The reversal of 158178162651168 is 861156261871851.

It is a super-2 number, since 2×158178162651168² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 158178162651099 and 158178162651108.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1510102605 + ... + 1510207347.

It is an arithmetic number, because the mean of its divisors is an integer number (1245523892256).

Almost surely, 2^{158178162651168} 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 158178162651168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239140587313152).

158178162651168 is an abundant number, since it is smaller than the sum of its proper divisors (320103011975136).

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

158178162651168 is a wasteful number, since it uses less digits than its factorization.

158178162651168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105528 (or 105520 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 66.

The spelling of 158178162651168 in words is "one hundred fifty-eight trillion, one hundred seventy-eight billion, one hundred sixty-two million, six hundred fifty-one thousand, one hundred sixty-eight".