20185858202 has 16 divisors (see below), whose sum is σ = 30810108672. Its totient is φ = 9916793040.

The previous prime is 20185858181. The next prime is 20185858211. The reversal of 20185858202 is 20285858102.

It is a self number, because there is not a number n which added to its sum of digits gives 20185858202.

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, 200978 + ... + 284189.

It is an arithmetic number, because the mean of its divisors is an integer number (1925631792).

Almost surely, 2^20185858202 is an apocalyptic number.

20185858202 is a deficient number, since it is larger than the sum of its proper divisors (10624250470).

20185858202 is a wasteful number, since it uses less digits than its factorization.

20185858202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485533.

The product of its (nonzero) digits is 102400, while the sum is 41.

The spelling of 20185858202 in words is "twenty billion, one hundred eighty-five million, eight hundred fifty-eight thousand, two hundred two".