66016255620060 has 36 divisors (see below), whose sum is σ = 200249308714728. Its totient is φ = 17604334831968.

The previous prime is 66016255620053. The next prime is 66016255620067. The reversal of 66016255620060 is 6002655261066.

It is a happy number.

66016255620060 is a `hidden beast` number, since 6 + 6 + 0 + 1 + 6 + 25 + 562 + 0 + 0 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (66016255620053) and next prime (66016255620067).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 66016255619988 and 66016255620015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66016255620067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183378487654 + ... + 183378488013.

Almost surely, 2^{66016255620060} is an apocalyptic number.

66016255620060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66016255620060 is an abundant number, since it is smaller than the sum of its proper divisors (134233053094668).

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

66016255620060 is a wasteful number, since it uses less digits than its factorization.

66016255620060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366756975682 (or 366756975677 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 66016255620060 in words is "sixty-six trillion, sixteen billion, two hundred fifty-five million, six hundred twenty thousand, sixty".