866473708065722 has 32 divisors (see below), whose sum is σ = 1319776244908032. Its totient is φ = 426554847823104.

The previous prime is 866473708065683. The next prime is 866473708065787. The reversal of 866473708065722 is 227560807374668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12022131878 + ... + 12022203950.

It is an arithmetic number, because the mean of its divisors is an integer number (41243007653376).

Almost surely, 2^{866473708065722} is an apocalyptic number.

866473708065722 is a deficient number, since it is larger than the sum of its proper divisors (453302536842310).

866473708065722 is a wasteful number, since it uses less digits than its factorization.

866473708065722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116262.

The product of its (nonzero) digits is 1137991680, while the sum is 71.

The spelling of 866473708065722 in words is "eight hundred sixty-six trillion, four hundred seventy-three billion, seven hundred eight million, sixty-five thousand, seven hundred twenty-two".