10549666997 has 4 divisors (see below), whose sum is σ = 10551877440. Its totient is φ = 10547456556.

The previous prime is 10549666969. The next prime is 10549667041. The reversal of 10549666997 is 79966694501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79966694501 = 2803 ⋅28528967.

It is a cyclic number.

It is not a de Polignac number, because 10549666997 - 2²⁶ = 10482558133 is a prime.

It is a super-2 number, since 2×10549666997² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10549666937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098047 + ... + 1107612.

It is an arithmetic number, because the mean of its divisors is an integer number (2637969360).

Almost surely, 2^10549666997 is an apocalyptic number.

It is an amenable number.

10549666997 is a deficient number, since it is larger than the sum of its proper divisors (2210443).

10549666997 is an equidigital number, since it uses as much as digits as its factorization.

10549666997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210442.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 10549666997 in words is "ten billion, five hundred forty-nine million, six hundred sixty-six thousand, nine hundred ninety-seven".