66065454346254 has 32 divisors (see below), whose sum is σ = 144144236499840. Its totient is φ = 20019636453600.

The previous prime is 66065454346207. The next prime is 66065454346291. The reversal of 66065454346254 is 45264345456066.

It is a congruent number.

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, 1832137 + ... + 11639915.

It is an arithmetic number, because the mean of its divisors is an integer number (4504507390620).

Almost surely, 2^{66065454346254} is an apocalyptic number.

66065454346254 is an abundant number, since it is smaller than the sum of its proper divisors (78078782153586).

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

66065454346254 is a wasteful number, since it uses less digits than its factorization.

66065454346254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9909856.

The product of its (nonzero) digits is 248832000, while the sum is 60.

The spelling of 66065454346254 in words is "sixty-six trillion, sixty-five billion, four hundred fifty-four million, three hundred forty-six thousand, two hundred fifty-four".