1606366878 has 16 divisors (see below), whose sum is σ = 3214169616. Its totient is φ = 535216320.

The previous prime is 1606366859. The next prime is 1606366889. The reversal of 1606366878 is 8786636061.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606366878.

It is a congruent number.

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, 45001 + ... + 72372.

It is an arithmetic number, because the mean of its divisors is an integer number (200885601).

Almost surely, 2^1606366878 is an apocalyptic number.

1606366878 is an abundant number, since it is smaller than the sum of its proper divisors (1607802738).

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

1606366878 is a wasteful number, since it uses less digits than its factorization.

1606366878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119659.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 1606366878 is about 40079.5069580453. The cubic root of 1606366878 is about 1171.1564473380.

The spelling of 1606366878 in words is "one billion, six hundred six million, three hundred sixty-six thousand, eight hundred seventy-eight".