320145545025 has 36 divisors (see below), whose sum is σ = 578983432768. Its totient is φ = 169086566880.

The previous prime is 320145544931. The next prime is 320145545047. The reversal of 320145545025 is 520545541023.

320145545025 is a `hidden beast` number, since 3 + 2 + 0 + 145 + 5 + 4 + 502 + 5 = 666.

It is not a de Polignac number, because 320145545025 - 2²⁰ = 320144496449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6883957 + ... + 6930306.

Almost surely, 2^320145545025 is an apocalyptic number.

It is an amenable number.

320145545025 is a deficient number, since it is larger than the sum of its proper divisors (258837887743).

320145545025 is a wasteful number, since it uses less digits than its factorization.

320145545025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814382 (or 13814374 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 320145545025 in words is "three hundred twenty billion, one hundred forty-five million, five hundred forty-five thousand, twenty-five".