2006152778 has 16 divisors (see below), whose sum is σ = 3557710080. Its totient is φ = 830132016.

The previous prime is 2006152769. The next prime is 2006152789. The reversal of 2006152778 is 8772516002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470226 + ... + 2471037.

It is an arithmetic number, because the mean of its divisors is an integer number (222356880).

Almost surely, 2^2006152778 is an apocalyptic number.

2006152778 is a deficient number, since it is larger than the sum of its proper divisors (1551557302).

2006152778 is a wasteful number, since it uses less digits than its factorization.

2006152778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941301.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 2006152778 is about 44790.0968741975. The cubic root of 2006152778 is about 1261.2117296735.

The spelling of 2006152778 in words is "two billion, six million, one hundred fifty-two thousand, seven hundred seventy-eight".