245261360422551 has 32 divisors (see below), whose sum is σ = 357465760727040. Its totient is φ = 148342451583200.

The previous prime is 245261360422531. The next prime is 245261360422609. The reversal of 245261360422551 is 155224063162542.

It is a cyclic number.

It is not a de Polignac number, because 245261360422551 - 2⁷ = 245261360422423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245261360422551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245261360422531) 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, 493721386 + ... + 494217896.

It is an arithmetic number, because the mean of its divisors is an integer number (11170805022720).

Almost surely, 2^{245261360422551} is an apocalyptic number.

245261360422551 is a deficient number, since it is larger than the sum of its proper divisors (112204400304489).

245261360422551 is a wasteful number, since it uses less digits than its factorization.

245261360422551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526787.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 245261360422551 in words is "two hundred forty-five trillion, two hundred sixty-one billion, three hundred sixty million, four hundred twenty-two thousand, five hundred fifty-one".