12697396699551 has 8 divisors (see below), whose sum is σ = 17475986855424. Its totient is φ = 8191868838360.

The previous prime is 12697396699513. The next prime is 12697396699607. The reversal of 12697396699551 is 15599669379621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12697396699551 - 2⁶ = 12697396699487 is a prime.

It is a super-2 number, since 2×12697396699551² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697396699501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68265573561 + ... + 68265573746.

It is an arithmetic number, because the mean of its divisors is an integer number (2184498356928).

Almost surely, 2^{12697396699551} is an apocalyptic number.

12697396699551 is a deficient number, since it is larger than the sum of its proper divisors (4778590155873).

12697396699551 is a wasteful number, since it uses less digits than its factorization.

12697396699551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136531147341.

The product of its digits is 1488034800, while the sum is 78.

The spelling of 12697396699551 in words is "twelve trillion, six hundred ninety-seven billion, three hundred ninety-six million, six hundred ninety-nine thousand, five hundred fifty-one".