266734070442 has 96 divisors (see below), whose sum is σ = 689669648640. Its totient is φ = 76192824960.

The previous prime is 266734070423. The next prime is 266734070459. The reversal of 266734070442 is 244070437662.

266734070442 is a `hidden beast` number, since 266 + 7 + 340 + 7 + 0 + 4 + 42 = 666.

It is a super-2 number, since 2×266734070442² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16547967 + ... + 16564077.

It is an arithmetic number, because the mean of its divisors is an integer number (7184058840).

Almost surely, 2^266734070442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266734070442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344834824320).

266734070442 is an abundant number, since it is smaller than the sum of its proper divisors (422935578198).

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

266734070442 is a wasteful number, since it uses less digits than its factorization.

266734070442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22393 (or 22380 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 266734070442 in words is "two hundred sixty-six billion, seven hundred thirty-four million, seventy thousand, four hundred forty-two".