266137142742 has 24 divisors (see below), whose sum is σ = 576640384320. Its totient is φ = 88710856560.

The previous prime is 266137142701. The next prime is 266137142749. The reversal of 266137142742 is 247241731662.

266137142742 is a `hidden beast` number, since 2 + 6 + 6 + 1 + 371 + 4 + 274 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266137142749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1542984 + ... + 1706772.

It is an arithmetic number, because the mean of its divisors is an integer number (24026682680).

Almost surely, 2^266137142742 is an apocalyptic number.

266137142742 is an abundant number, since it is smaller than the sum of its proper divisors (310503241578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266137142742 is a wasteful number, since it uses less digits than its factorization.

266137142742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254068 (or 254065 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 266137142742 in words is "two hundred sixty-six billion, one hundred thirty-seven million, one hundred forty-two thousand, seven hundred forty-two".