10160177778 has 24 divisors (see below), whose sum is σ = 22083174828. Its totient is φ = 3376040352.

The previous prime is 10160177773. The next prime is 10160177861. The reversal of 10160177778 is 87777106101.

It can be written as a sum of positive squares in 2 ways, for example, as 10123780689 + 36397089 = 100617^2 + 6033^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10160177771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884601 + ... + 896012.

Almost surely, 2^10160177778 is an apocalyptic number.

10160177778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10160177778 is an abundant number, since it is smaller than the sum of its proper divisors (11922997050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10160177778 is a wasteful number, since it uses less digits than its factorization.

10160177778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780938 (or 1780935 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 45.

The spelling of 10160177778 in words is "ten billion, one hundred sixty million, one hundred seventy-seven thousand, seven hundred seventy-eight".