66246216102054 has 24 divisors (see below), whose sum is σ = 144326470815072. Its totient is φ = 21960071634960.

The previous prime is 66246216102029. The next prime is 66246216102097. The reversal of 66246216102054 is 45020161264266.

66246216102054 is a `hidden beast` number, since 6 + 6 + 2 + 4 + 6 + 2 + 1 + 610 + 20 + 5 + 4 = 666.

It is a super-2 number, since 2×66246216102054² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10166696574 + ... + 10166703089.

It is an arithmetic number, because the mean of its divisors is an integer number (6013602950628).

Almost surely, 2^{66246216102054} is an apocalyptic number.

66246216102054 is an abundant number, since it is smaller than the sum of its proper divisors (78080254713018).

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

66246216102054 is a wasteful number, since it uses less digits than its factorization.

66246216102054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20333399852 (or 20333399849 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 66246216102054 in words is "sixty-six trillion, two hundred forty-six billion, two hundred sixteen million, one hundred two thousand, fifty-four".