245155511121 has 8 divisors (see below), whose sum is σ = 327861550944. Its totient is φ = 162943239360.

The previous prime is 245155511101. The next prime is 245155511197. The reversal of 245155511121 is 121115551542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245155511121 - 2⁷ = 245155510993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245155511101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123440856 + ... + 123442841.

It is an arithmetic number, because the mean of its divisors is an integer number (40982693868).

Almost surely, 2^245155511121 is an apocalyptic number.

It is an amenable number.

245155511121 is a deficient number, since it is larger than the sum of its proper divisors (82706039823).

245155511121 is a wasteful number, since it uses less digits than its factorization.

245155511121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246884031.

The product of its digits is 10000, while the sum is 33.

The spelling of 245155511121 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred eleven thousand, one hundred twenty-one".