31308606066 has 32 divisors (see below), whose sum is σ = 65434457088. Its totient is φ = 9967977360.

The previous prime is 31308606029. The next prime is 31308606067. The reversal of 31308606066 is 66060680313.

It is not an unprimeable number, because it can be changed into a prime (31308606067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68806 + ... + 259521.

It is an arithmetic number, because the mean of its divisors is an integer number (2044826784).

Almost surely, 2^31308606066 is an apocalyptic number.

31308606066 is an abundant number, since it is smaller than the sum of its proper divisors (34125851022).

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

31308606066 is a wasteful number, since it uses less digits than its factorization.

31308606066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329046.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 31308606066 in words is "thirty-one billion, three hundred eight million, six hundred six thousand, sixty-six".