245555012211555 has 16 divisors (see below), whose sum is σ = 392890059260064. Its totient is φ = 130961993272320.

The previous prime is 245555012211521. The next prime is 245555012211557. The reversal of 245555012211555 is 555112210555542.

It is not a de Polignac number, because 245555012211555 - 2¹⁰ = 245555012210531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245555012211557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39501816 + ... + 45293525.

It is an arithmetic number, because the mean of its divisors is an integer number (24555628703754).

Almost surely, 2^{245555012211555} is an apocalyptic number.

245555012211555 is a deficient number, since it is larger than the sum of its proper divisors (147335047048509).

245555012211555 is a wasteful number, since it uses less digits than its factorization.

245555012211555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84988406.

The product of its (nonzero) digits is 2500000, while the sum is 48.

The spelling of 245555012211555 in words is "two hundred forty-five trillion, five hundred fifty-five billion, twelve million, two hundred eleven thousand, five hundred fifty-five".