245445666422 has 64 divisors (see below), whose sum is σ = 432396264960. Its totient is φ = 104232633120.

The previous prime is 245445666421. The next prime is 245445666439. The reversal of 245445666422 is 224666544542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245445666421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2586104 + ... + 2679332.

It is an arithmetic number, because the mean of its divisors is an integer number (6756191640).

Almost surely, 2^245445666422 is an apocalyptic number.

245445666422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245445666422 is a deficient number, since it is larger than the sum of its proper divisors (186950598538).

245445666422 is a wasteful number, since it uses less digits than its factorization.

245445666422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93330 (or 93308 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 50.

The spelling of 245445666422 in words is "two hundred forty-five billion, four hundred forty-five million, six hundred sixty-six thousand, four hundred twenty-two".