1551111000161 has 8 divisors (see below), whose sum is σ = 1559114251200. Its totient is φ = 1543109836752.

The previous prime is 1551111000139. The next prime is 1551111000193. The reversal of 1551111000161 is 1610001111551.

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 1551111000161 - 2¹⁴ = 1551110983777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551111080161) 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, 979031 + ... + 2015123.

It is an arithmetic number, because the mean of its divisors is an integer number (194889281400).

Almost surely, 2^{1551111000161} is an apocalyptic number.

It is an amenable number.

1551111000161 is a deficient number, since it is larger than the sum of its proper divisors (8003251039).

1551111000161 is a wasteful number, since it uses less digits than its factorization.

1551111000161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043815.

The product of its (nonzero) digits is 150, while the sum is 23.

The spelling of 1551111000161 in words is "one trillion, five hundred fifty-one billion, one hundred eleven million, one hundred sixty-one", and thus it is an aban number.