78160078 has 16 divisors (see below), whose sum is σ = 120093120. Its totient is φ = 38140416.

The previous prime is 78160057. The next prime is 78160081. The reversal of 78160078 is 87006187.

It is a happy number.

It is a super-2 number, since 2×78160078² = 12217995585932168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11403 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (7505820).

Almost surely, 2^78160078 is an apocalyptic number.

78160078 is a deficient number, since it is larger than the sum of its proper divisors (41933042).

78160078 is a wasteful number, since it uses less digits than its factorization.

78160078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 78160078 is about 8840.8188534773. The cubic root of 78160078 is about 427.5579584677.

The spelling of 78160078 in words is "seventy-eight million, one hundred sixty thousand, seventy-eight".