1230662445545 has 24 divisors (see below), whose sum is σ = 1621038989016. Its totient is φ = 896347565568.

The previous prime is 1230662445499. The next prime is 1230662445553. The reversal of 1230662445545 is 5455442660321.

It can be written as a sum of positive squares in 12 ways, for example, as 898643329024 + 332019116521 = 947968^2 + 576211^2 .

It is not a de Polignac number, because 1230662445545 - 2⁸ = 1230662445289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230662445545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9913694 + ... + 10037063.

It is an arithmetic number, because the mean of its divisors is an integer number (67543291209).

Almost surely, 2^{1230662445545} is an apocalyptic number.

It is an amenable number.

1230662445545 is a deficient number, since it is larger than the sum of its proper divisors (390376543471).

1230662445545 is a wasteful number, since it uses less digits than its factorization.

1230662445545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19950861 (or 19950848 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 1230662445545 in words is "one trillion, two hundred thirty billion, six hundred sixty-two million, four hundred forty-five thousand, five hundred forty-five".