1610521403125 has 144 divisors (see below), whose sum is σ = 2280139061760. Its totient is φ = 1133196480000.

The previous prime is 1610521403111. The next prime is 1610521403129. The reversal of 1610521403125 is 5213041250161.

It is not a de Polignac number, because 1610521403125 - 2²⁷ = 1610387185397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1610521403129) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1515071344 + ... + 1515072406.

It is an arithmetic number, because the mean of its divisors is an integer number (15834299040).

Almost surely, 2^{1610521403125} is an apocalyptic number.

It is an amenable number.

1610521403125 is a deficient number, since it is larger than the sum of its proper divisors (669617658635).

1610521403125 is an equidigital number, since it uses as much as digits as its factorization.

1610521403125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 1610521403125 its reverse (5213041250161), we get a palindrome (6823562653286).

The spelling of 1610521403125 in words is "one trillion, six hundred ten billion, five hundred twenty-one million, four hundred three thousand, one hundred twenty-five".