20078116 has 6 divisors (see below), whose sum is σ = 35136710. Its totient is φ = 10039056.

The previous prime is 20078101. The next prime is 20078131. The reversal of 20078116 is 61187002.

It is an interprime number because it is at equal distance from previous prime (20078101) and next prime (20078131).

It can be written as a sum of positive squares in only one way, i.e., 17255716 + 2822400 = 4154^2 + 1680^2 .

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 as a sum of consecutive naturals, namely, 2509761 + ... + 2509768.

Almost surely, 2^20078116 is an apocalyptic number.

It is an amenable number.

20078116 is a deficient number, since it is larger than the sum of its proper divisors (15058594).

20078116 is a wasteful number, since it uses less digits than its factorization.

20078116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019533 (or 5019531 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 20078116 is about 4480.8610779626. The cubic root of 20078116 is about 271.7947016308.

The spelling of 20078116 in words is "twenty million, seventy-eight thousand, one hundred sixteen".