1662425352545 has 16 divisors (see below), whose sum is σ = 2026395608832. Its totient is φ = 1309068414720.

The previous prime is 1662425352529. The next prime is 1662425352589. The reversal of 1662425352545 is 5452535242661.

It is a happy number.

It is not a de Polignac number, because 1662425352545 - 2⁴ = 1662425352529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1662425352493 and 1662425352502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7278392 + ... + 7503321.

It is an arithmetic number, because the mean of its divisors is an integer number (126649725552).

Almost surely, 2^{1662425352545} is an apocalyptic number.

It is an amenable number.

1662425352545 is a deficient number, since it is larger than the sum of its proper divisors (363970256287).

1662425352545 is a wasteful number, since it uses less digits than its factorization.

1662425352545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14782072.

The product of its digits is 8640000, while the sum is 50.

The spelling of 1662425352545 in words is "one trillion, six hundred sixty-two billion, four hundred twenty-five million, three hundred fifty-two thousand, five hundred forty-five".