185000001663 has 16 divisors (see below), whose sum is σ = 263712174336. Its totient is φ = 114951454080.

The previous prime is 185000001661. The next prime is 185000001707. The reversal of 185000001663 is 366100000581.

It is not a de Polignac number, because 185000001663 - 2¹ = 185000001661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 185000001663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185000001661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17603733 + ... + 17614238.

It is an arithmetic number, because the mean of its divisors is an integer number (16482010896).

Almost surely, 2^185000001663 is an apocalyptic number.

185000001663 is a deficient number, since it is larger than the sum of its proper divisors (78712172673).

185000001663 is a wasteful number, since it uses less digits than its factorization.

185000001663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35218094.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 185000001663 in words is "one hundred eighty-five billion, one thousand, six hundred sixty-three".