659811963 has 16 divisors (see below), whose sum is σ = 886463136. Its totient is φ = 436531200.

The previous prime is 659811961. The next prime is 659812019. The reversal of 659811963 is 369118956.

It is not a de Polignac number, because 659811963 - 2¹ = 659811961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (659811961) 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, 234163 + ... + 236963.

It is an arithmetic number, because the mean of its divisors is an integer number (55403946).

Almost surely, 2^659811963 is an apocalyptic number.

659811963 is a deficient number, since it is larger than the sum of its proper divisors (226651173).

659811963 is a wasteful number, since it uses less digits than its factorization.

659811963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374.

The product of its digits is 349920, while the sum is 48.

The square root of 659811963 is about 25686.8052314802. The cubic root of 659811963 is about 870.5760763834.

The spelling of 659811963 in words is "six hundred fifty-nine million, eight hundred eleven thousand, nine hundred sixty-three".