1653264142266 has 128 divisors (see below), whose sum is σ = 3952447488000. Its totient is φ = 455093775360.

The previous prime is 1653264142177. The next prime is 1653264142267. The reversal of 1653264142266 is 6622414623561.

It is a super-2 number, since 2×1653264142266² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1653264142267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108766935 + ... + 108782133.

It is an arithmetic number, because the mean of its divisors is an integer number (30878496000).

Almost surely, 2^{1653264142266} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1653264142266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1976223744000).

1653264142266 is an abundant number, since it is smaller than the sum of its proper divisors (2299183345734).

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

1653264142266 is a wasteful number, since it uses less digits than its factorization.

1653264142266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18604.

The product of its digits is 2488320, while the sum is 48.

The spelling of 1653264142266 in words is "one trillion, six hundred fifty-three billion, two hundred sixty-four million, one hundred forty-two thousand, two hundred sixty-six".