245042104551 has 16 divisors (see below), whose sum is σ = 330009043968. Its totient is φ = 161718788000.

The previous prime is 245042104523. The next prime is 245042104609. The reversal of 245042104551 is 155401240542.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 245042104551 - 2⁹ = 245042104039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245042104501) 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, 1998130 + ... + 2117216.

It is an arithmetic number, because the mean of its divisors is an integer number (20625565248).

Almost surely, 2^245042104551 is an apocalyptic number.

245042104551 is a deficient number, since it is larger than the sum of its proper divisors (84966939417).

245042104551 is a wasteful number, since it uses less digits than its factorization.

245042104551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125982.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 245042104551 in words is "two hundred forty-five billion, forty-two million, one hundred four thousand, five hundred fifty-one".