266443215453442 has 8 divisors (see below), whose sum is σ = 412557236831232. Its totient is φ = 128924136509700.

The previous prime is 266443215453433. The next prime is 266443215453509. The reversal of 266443215453442 is 244354512344662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×266443215453442² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148735608434 + ... + 2148735608557.

It is an arithmetic number, because the mean of its divisors is an integer number (51569654603904).

Almost surely, 2^{266443215453442} is an apocalyptic number.

266443215453442 is a deficient number, since it is larger than the sum of its proper divisors (146114021377790).

266443215453442 is a wasteful number, since it uses less digits than its factorization.

266443215453442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297471217024.

The product of its digits is 66355200, while the sum is 55.

The spelling of 266443215453442 in words is "two hundred sixty-six trillion, four hundred forty-three billion, two hundred fifteen million, four hundred fifty-three thousand, four hundred forty-two".