10690660256018 has 18 divisors (see below), whose sum is σ = 16057110503079. Its totient is φ = 5338299345132.

The previous prime is 10690660255981. The next prime is 10690660256041. The reversal of 10690660256018 is 81065206609601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5345330128009 + 5345330128009 = 2311997^2 + 2311997^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2311997.

It is a super-2 number, since 2×10690660256018² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6857382323 + ... + 6857383881.

Almost surely, 2^{10690660256018} is an apocalyptic number.

10690660256018 is a deficient number, since it is larger than the sum of its proper divisors (5366450247061).

10690660256018 is an frugal number, since it uses more digits than its factorization.

10690660256018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

Multiplying 10690660256018 by its sum of digits (50), we get a square (534533012800900 = 23119970²).

The spelling of 10690660256018 in words is "ten trillion, six hundred ninety billion, six hundred sixty million, two hundred fifty-six thousand, eighteen".