158178312616 has 16 divisors (see below), whose sum is σ = 297825278400. Its totient is φ = 78758238384.

The previous prime is 158178312601. The next prime is 158178312667. The reversal of 158178312616 is 616213871851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 158178312616.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41362710 + ... + 41366533.

It is an arithmetic number, because the mean of its divisors is an integer number (18614079900).

Almost surely, 2^158178312616 is an apocalyptic number.

It is an amenable number.

158178312616 is a deficient number, since it is larger than the sum of its proper divisors (139646965784).

158178312616 is a wasteful number, since it uses less digits than its factorization.

158178312616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82729488 (or 82729484 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The spelling of 158178312616 in words is "one hundred fifty-eight billion, one hundred seventy-eight million, three hundred twelve thousand, six hundred sixteen".