742066660247 has 16 divisors (see below), whose sum is σ = 854822160000. Its totient is φ = 637084326240.

The previous prime is 742066660229. The next prime is 742066660267.

742066660247 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 742066660247 - 2⁶ = 742066660183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742066660195 and 742066660204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742066660207) 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, 5533997 + ... + 5666502.

It is an arithmetic number, because the mean of its divisors is an integer number (53426385000).

Almost surely, 2^742066660247 is an apocalyptic number.

742066660247 is a deficient number, since it is larger than the sum of its proper divisors (112755499753).

742066660247 is a wasteful number, since it uses less digits than its factorization.

742066660247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11200846.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 742066660247 in words is "seven hundred forty-two billion, sixty-six million, six hundred sixty thousand, two hundred forty-seven".