1545205645552 has 40 divisors (see below), whose sum is σ = 3040458332240. Its totient is φ = 760610373120.

The previous prime is 1545205645523. The next prime is 1545205645579. The reversal of 1545205645552 is 2555465025451.

It is a junction number, because it is equal to n+sod(n) for n = 1545205645496 and 1545205645505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590802 + ... + 1854577.

It is an arithmetic number, because the mean of its divisors is an integer number (76011458306).

Almost surely, 2^{1545205645552} is an apocalyptic number.

It is an amenable number.

1545205645552 is a deficient number, since it is larger than the sum of its proper divisors (1495252686688).

1545205645552 is a wasteful number, since it uses less digits than its factorization.

1545205645552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446001 (or 2445995 counting only the distinct ones).

The product of its (nonzero) digits is 6000000, while the sum is 49.

The spelling of 1545205645552 in words is "one trillion, five hundred forty-five billion, two hundred five million, six hundred forty-five thousand, five hundred fifty-two".