1665625162126 has 16 divisors (see below), whose sum is σ = 2503981861920. Its totient is φ = 830964722080.

The previous prime is 1665625162067. The next prime is 1665625162127. The reversal of 1665625162126 is 6212615265661.

It is a self number, because there is not a number n which added to its sum of digits gives 1665625162126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665625162127) 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, 27988935 + ... + 28048381.

It is an arithmetic number, because the mean of its divisors is an integer number (156498866370).

Almost surely, 2^{1665625162126} is an apocalyptic number.

1665625162126 is a deficient number, since it is larger than the sum of its proper divisors (838356699794).

1665625162126 is a wasteful number, since it uses less digits than its factorization.

1665625162126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90299.

The product of its digits is 1555200, while the sum is 49.

The spelling of 1665625162126 in words is "one trillion, six hundred sixty-five billion, six hundred twenty-five million, one hundred sixty-two thousand, one hundred twenty-six".