666211120513062 has 16 divisors (see below), whose sum is σ = 1402549727396160. Its totient is φ = 210382459109352.

The previous prime is 666211120513061. The next prime is 666211120513097. The reversal of 666211120513062 is 260315021112666.

It is a super-2 number, since 2×666211120513062² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666211120513061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921978598628 + ... + 2921978598855.

It is an arithmetic number, because the mean of its divisors is an integer number (87659357962260).

Almost surely, 2^{666211120513062} is an apocalyptic number.

666211120513062 is an abundant number, since it is smaller than the sum of its proper divisors (736338606883098).

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

666211120513062 is a wasteful number, since it uses less digits than its factorization.

666211120513062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843957197507.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 666211120513062 in words is "six hundred sixty-six trillion, two hundred eleven billion, one hundred twenty million, five hundred thirteen thousand, sixty-two".