63951066 has 32 divisors (see below), whose sum is σ = 144069120. Its totient is φ = 21023712.

The previous prime is 63951023. The next prime is 63951071. The reversal of 63951066 is 66015936.

63951066 is a `hidden beast` number, since 639 + 5 + 10 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63951066.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4170 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (4502160).

Almost surely, 2^63951066 is an apocalyptic number.

63951066 is an abundant number, since it is smaller than the sum of its proper divisors (80118054).

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

63951066 is a wasteful number, since it uses less digits than its factorization.

63951066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16307 (or 16301 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 63951066 is about 7996.9410401728. The cubic root of 63951066 is about 399.8980281732.

The spelling of 63951066 in words is "sixty-three million, nine hundred fifty-one thousand, sixty-six".