60663816 has 80 divisors (see below), whose sum is σ = 171190800. Its totient is φ = 20069856.

The previous prime is 60663791. The next prime is 60663817. The reversal of 60663816 is 61836606.

60663816 is a `hidden beast` number, since 6 + 0 + 6 + 638 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (60663817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115731 + ... + 116253.

It is an arithmetic number, because the mean of its divisors is an integer number (2139885).

Almost surely, 2^60663816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60663816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85595400).

60663816 is an abundant number, since it is smaller than the sum of its proper divisors (110526984).

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

60663816 is a wasteful number, since it uses less digits than its factorization.

60663816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 60663816 is about 7788.6979656423. The cubic root of 60663816 is about 392.9252232300.

The spelling of 60663816 in words is "sixty million, six hundred sixty-three thousand, eight hundred sixteen".