266106405561051 has 16 divisors (see below), whose sum is σ = 388212420106368. Its totient is φ = 160798043817600.

The previous prime is 266106405561047. The next prime is 266106405561067. The reversal of 266106405561051 is 150165504601662.

It is not a de Polignac number, because 266106405561051 - 2² = 266106405561047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266106405561151) 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, 11964129045 + ... + 11964151286.

It is an arithmetic number, because the mean of its divisors is an integer number (24263276256648).

Almost surely, 2^{266106405561051} is an apocalyptic number.

266106405561051 is a deficient number, since it is larger than the sum of its proper divisors (122106014545317).

266106405561051 is a wasteful number, since it uses less digits than its factorization.

266106405561051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23928280682.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 266106405561051 in words is "two hundred sixty-six trillion, one hundred six billion, four hundred five million, five hundred sixty-one thousand, fifty-one".