168377381078 has 4 divisors (see below), whose sum is σ = 252566071620. Its totient is φ = 84188690538.

The previous prime is 168377381071. The next prime is 168377381089. The reversal of 168377381078 is 870183773861.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168377381071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42094345268 + ... + 42094345271.

It is an arithmetic number, because the mean of its divisors is an integer number (63141517905).

Almost surely, 2^168377381078 is an apocalyptic number.

168377381078 is a deficient number, since it is larger than the sum of its proper divisors (84188690542).

168377381078 is an equidigital number, since it uses as much as digits as its factorization.

168377381078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84188690541.

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 168377381078 in words is "one hundred sixty-eight billion, three hundred seventy-seven million, three hundred eighty-one thousand, seventy-eight".