201010778 has 8 divisors (see below), whose sum is σ = 301963572. Its totient is φ = 100356256.

The previous prime is 201010769. The next prime is 201010781. The reversal of 201010778 is 877010102.

201010778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159188689 + 41822089 = 12617^2 + 6467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 72875 + ... + 75582.

Almost surely, 2^201010778 is an apocalyptic number.

201010778 is a deficient number, since it is larger than the sum of its proper divisors (100952794).

201010778 is a wasteful number, since it uses less digits than its factorization.

201010778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149136.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 201010778 is about 14177.8269844148. The cubic root of 201010778 is about 585.7870702275.

The spelling of 201010778 in words is "two hundred one million, ten thousand, seven hundred seventy-eight".