66342950455 has 16 divisors (see below), whose sum is σ = 81907030080. Its totient is φ = 51549080832.

The previous prime is 66342950447. The next prime is 66342950489. The reversal of 66342950455 is 55405924366.

It is a cyclic number.

It is not a de Polignac number, because 66342950455 - 2³ = 66342950447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66342950399 and 66342950408.

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, 209859 + ... + 420388.

It is an arithmetic number, because the mean of its divisors is an integer number (5119189380).

Almost surely, 2^66342950455 is an apocalyptic number.

66342950455 is a deficient number, since it is larger than the sum of its proper divisors (15564079625).

66342950455 is a wasteful number, since it uses less digits than its factorization.

66342950455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630858.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 66342950455 in words is "sixty-six billion, three hundred forty-two million, nine hundred fifty thousand, four hundred fifty-five".