659949954 has 16 divisors (see below), whose sum is σ = 1320939360. Its totient is φ = 219810080.

The previous prime is 659949949. The next prime is 659949967. The reversal of 659949954 is 459949956.

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, 34932 + ... + 50399.

It is an arithmetic number, because the mean of its divisors is an integer number (82558710).

Almost surely, 2^659949954 is an apocalyptic number.

659949954 is an abundant number, since it is smaller than the sum of its proper divisors (660989406).

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

659949954 is a wasteful number, since it uses less digits than its factorization.

659949954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86625.

The product of its digits is 15746400, while the sum is 60.

The square root of 659949954 is about 25689.4911199113. The cubic root of 659949954 is about 870.6367620011.

The spelling of 659949954 in words is "six hundred fifty-nine million, nine hundred forty-nine thousand, nine hundred fifty-four".