1551046736671 has 4 divisors (see below), whose sum is σ = 1567036909312. Its totient is φ = 1535056564032.

The previous prime is 1551046736653. The next prime is 1551046736747. The reversal of 1551046736671 is 1766376401551.

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 1551046736671 - 2³⁷ = 1413607783199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551046736621) 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, 7995086175 + ... + 7995086368.

It is an arithmetic number, because the mean of its divisors is an integer number (391759227328).

Almost surely, 2^{1551046736671} is an apocalyptic number.

1551046736671 is a deficient number, since it is larger than the sum of its proper divisors (15990172641).

1551046736671 is an equidigital number, since it uses as much as digits as its factorization.

1551046736671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15990172640.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 1551046736671 in words is "one trillion, five hundred fifty-one billion, forty-six million, seven hundred thirty-six thousand, six hundred seventy-one".