1351161550225 has 24 divisors (see below), whose sum is σ = 1691415760320. Its totient is φ = 1070629600320.

The previous prime is 1351161550187. The next prime is 1351161550241. The reversal of 1351161550225 is 5220551611531.

It is not a de Polignac number, because 1351161550225 - 2⁷ = 1351161550097 is a prime.

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, 7659972 + ... + 7834378.

It is an arithmetic number, because the mean of its divisors is an integer number (70475656680).

Almost surely, 2^{1351161550225} is an apocalyptic number.

It is an amenable number.

1351161550225 is a deficient number, since it is larger than the sum of its proper divisors (340254210095).

1351161550225 is a wasteful number, since it uses less digits than its factorization.

1351161550225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177369 (or 177364 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 1351161550225 in words is "one trillion, three hundred fifty-one billion, one hundred sixty-one million, five hundred fifty thousand, two hundred twenty-five".