660246434331 has 16 divisors (see below), whose sum is σ = 974692161408. Its totient is φ = 394176974400.

The previous prime is 660246434293. The next prime is 660246434389. The reversal of 660246434331 is 133434642066.

It is a happy number.

It is not a de Polignac number, because 660246434331 - 2⁷ = 660246434203 is a prime.

It is a super-2 number, since 2×660246434331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (660246430331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149307250 + ... + 149311671.

It is an arithmetic number, because the mean of its divisors is an integer number (60918260088).

Almost surely, 2^660246434331 is an apocalyptic number.

660246434331 is a deficient number, since it is larger than the sum of its proper divisors (314445727077).

660246434331 is a wasteful number, since it uses less digits than its factorization.

660246434331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298619002.

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 660246434331 in words is "six hundred sixty billion, two hundred forty-six million, four hundred thirty-four thousand, three hundred thirty-one".