3551551165567 has 8 divisors (see below), whose sum is σ = 3558075208560. Its totient is φ = 3545028114240.

The previous prime is 3551551165511. The next prime is 3551551165571. The reversal of 3551551165567 is 7655611551553.

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

It is a cyclic number.

It is not a de Polignac number, because 3551551165567 - 2²⁷ = 3551416947839 is a prime.

It is a super-2 number, since 2×3551551165567² (a number of 26 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 (3551551165367) 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, 7122268 + ... + 7604590.

It is an arithmetic number, because the mean of its divisors is an integer number (444759401070).

Almost surely, 2^{3551551165567} is an apocalyptic number.

3551551165567 is a deficient number, since it is larger than the sum of its proper divisors (6524042993).

3551551165567 is a wasteful number, since it uses less digits than its factorization.

3551551165567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495833.

The product of its digits is 11812500, while the sum is 55.

The spelling of 3551551165567 in words is "three trillion, five hundred fifty-one billion, five hundred fifty-one million, one hundred sixty-five thousand, five hundred sixty-seven".