699137718066 has 64 divisors (see below), whose sum is σ = 1556427312000. Its totient is φ = 232628044608.

The previous prime is 699137718061. The next prime is 699137718089. The reversal of 699137718066 is 660817731996.

It is a super-3 number, since 3×699137718066³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 699137717994 and 699137718012.

It is not an unprimeable number, because it can be changed into a prime (699137718061) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 137704320 + ... + 137709396.

It is an arithmetic number, because the mean of its divisors is an integer number (24319176750).

Almost surely, 2^699137718066 is an apocalyptic number.

699137718066 is an abundant number, since it is smaller than the sum of its proper divisors (857289593934).

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

699137718066 is a wasteful number, since it uses less digits than its factorization.

699137718066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160 (or 9154 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 699137718066 in words is "six hundred ninety-nine billion, one hundred thirty-seven million, seven hundred eighteen thousand, sixty-six".