245400506655 has 32 divisors (see below), whose sum is σ = 397111281600. Its totient is φ = 129395377152.

The previous prime is 245400506609. The next prime is 245400506671. The reversal of 245400506655 is 556605004542.

It is a happy number.

It is not a de Polignac number, because 245400506655 - 2¹¹ = 245400504607 is a prime.

It is a super-3 number, since 3×245400506655³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582981 + ... + 911409.

It is an arithmetic number, because the mean of its divisors is an integer number (12409727550).

Almost surely, 2^245400506655 is an apocalyptic number.

245400506655 is a deficient number, since it is larger than the sum of its proper divisors (151710774945).

245400506655 is a wasteful number, since it uses less digits than its factorization.

245400506655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329003.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 245400506655 in words is "two hundred forty-five billion, four hundred million, five hundred six thousand, six hundred fifty-five".