1925816161191 has 32 divisors (see below), whose sum is σ = 2774250984960. Its totient is φ = 1181274691200.

The previous prime is 1925816161177. The next prime is 1925816161207. The reversal of 1925816161191 is 1911616185291.

It is not a de Polignac number, because 1925816161191 - 2¹⁴ = 1925816144807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925816161091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22881376 + ... + 22965386.

It is an arithmetic number, because the mean of its divisors is an integer number (86695343280).

Almost surely, 2^{1925816161191} is an apocalyptic number.

1925816161191 is a deficient number, since it is larger than the sum of its proper divisors (848434823769).

1925816161191 is a wasteful number, since it uses less digits than its factorization.

1925816161191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85927.

The product of its digits is 233280, while the sum is 51.

The spelling of 1925816161191 in words is "one trillion, nine hundred twenty-five billion, eight hundred sixteen million, one hundred sixty-one thousand, one hundred ninety-one".