245551226511 has 4 divisors (see below), whose sum is σ = 327401635352. Its totient is φ = 163700817672.

The previous prime is 245551226449. The next prime is 245551226533. The reversal of 245551226511 is 115622155542.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245551226511 - 2⁹ = 245551225999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245551226511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245551226551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40925204416 + ... + 40925204421.

It is an arithmetic number, because the mean of its divisors is an integer number (81850408838).

Almost surely, 2^245551226511 is an apocalyptic number.

245551226511 is a deficient number, since it is larger than the sum of its proper divisors (81850408841).

245551226511 is an equidigital number, since it uses as much as digits as its factorization.

245551226511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81850408840.

The product of its digits is 120000, while the sum is 39.

The spelling of 245551226511 in words is "two hundred forty-five billion, five hundred fifty-one million, two hundred twenty-six thousand, five hundred eleven".