245120454551 has 16 divisors (see below), whose sum is σ = 281906956800. Its totient is φ = 208777097760.

The previous prime is 245120454533. The next prime is 245120454559. The reversal of 245120454551 is 155454021542.

245120454551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245120454551 - 2⁶ = 245120454487 is a prime.

It is a super-2 number, since 2×245120454551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120454559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3732800 + ... + 3797898.

It is an arithmetic number, because the mean of its divisors is an integer number (17619184800).

Almost surely, 2^245120454551 is an apocalyptic number.

245120454551 is a deficient number, since it is larger than the sum of its proper divisors (36786502249).

245120454551 is a wasteful number, since it uses less digits than its factorization.

245120454551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68494.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 245120454551 in words is "two hundred forty-five billion, one hundred twenty million, four hundred fifty-four thousand, five hundred fifty-one".