67196623551 has 4 divisors (see below), whose sum is σ = 89595498072. Its totient is φ = 44797749032.

The previous prime is 67196623547. The next prime is 67196623561. The reversal of 67196623551 is 15532669176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67196623551 - 2² = 67196623547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67196623494 and 67196623503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67196623541) 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 3 ways as a sum of consecutive naturals, for example, 11199437256 + ... + 11199437261.

It is an arithmetic number, because the mean of its divisors is an integer number (22398874518).

Almost surely, 2^67196623551 is an apocalyptic number.

67196623551 is a deficient number, since it is larger than the sum of its proper divisors (22398874521).

67196623551 is a wasteful number, since it uses less digits than its factorization.

67196623551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22398874520.

The product of its digits is 2041200, while the sum is 51.

The spelling of 67196623551 in words is "sixty-seven billion, one hundred ninety-six million, six hundred twenty-three thousand, five hundred fifty-one".