1551066651601 has 8 divisors (see below), whose sum is σ = 1551833631360. Its totient is φ = 1550299868208.

The previous prime is 1551066651599. The next prime is 1551066651619. The reversal of 1551066651601 is 1061566601551.

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 1551066651601 - 2¹ = 1551066651599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551066651671) 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, 17220040 + ... + 17309878.

It is an arithmetic number, because the mean of its divisors is an integer number (193979203920).

Almost surely, 2^{1551066651601} is an apocalyptic number.

It is an amenable number.

1551066651601 is a deficient number, since it is larger than the sum of its proper divisors (766979759).

1551066651601 is an equidigital number, since it uses as much as digits as its factorization.

1551066651601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98183.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 1551066651601 in words is "one trillion, five hundred fifty-one billion, sixty-six million, six hundred fifty-one thousand, six hundred one".