660746463355 has 32 divisors (see below), whose sum is σ = 872981867520. Its totient is φ = 476099258880.

The previous prime is 660746463353. The next prime is 660746463361. The reversal of 660746463355 is 553364647066.

It is a happy number.

It is not a de Polignac number, because 660746463355 - 2¹ = 660746463353 is a prime.

It is a super-2 number, since 2×660746463355² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 660746463296 and 660746463305.

It is not an unprimeable number, because it can be changed into a prime (660746463353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16505694 + ... + 16545676.

It is an arithmetic number, because the mean of its divisors is an integer number (27280683360).

Almost surely, 2^660746463355 is an apocalyptic number.

660746463355 is a deficient number, since it is larger than the sum of its proper divisors (212235404165).

660746463355 is a wasteful number, since it uses less digits than its factorization.

660746463355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42771.

The product of its (nonzero) digits is 32659200, while the sum is 55.

The spelling of 660746463355 in words is "six hundred sixty billion, seven hundred forty-six million, four hundred sixty-three thousand, three hundred fifty-five".