260155520145 has 80 divisors (see below), whose sum is σ = 482665098960. Its totient is φ = 133900978176.

The previous prime is 260155520063. The next prime is 260155520153. The reversal of 260155520145 is 541025551062.

260155520145 is a `hidden beast` number, since 2 + 60 + 1 + 5 + 552 + 0 + 1 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 37341311121 + 222814209024 = 193239^2 + 472032^2 .

It is not a de Polignac number, because 260155520145 - 2⁷ = 260155520017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 33551589 + ... + 33559341.

It is an arithmetic number, because the mean of its divisors is an integer number (6033313737).

Almost surely, 2^260155520145 is an apocalyptic number.

It is an amenable number.

260155520145 is a deficient number, since it is larger than the sum of its proper divisors (222509578815).

260155520145 is a wasteful number, since it uses less digits than its factorization.

260155520145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656 (or 10647 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 260155520145 in words is "two hundred sixty billion, one hundred fifty-five million, five hundred twenty thousand, one hundred forty-five".