20152613761266 has 64 divisors (see below), whose sum is σ = 46244534411520. Its totient is φ = 5735214612480.

The previous prime is 20152613761237. The next prime is 20152613761277. The reversal of 20152613761266 is 66216731625102.

It is a super-2 number, since 2×20152613761266² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381876130 + ... + 381928898.

It is an arithmetic number, because the mean of its divisors is an integer number (722570850180).

Almost surely, 2^{20152613761266} is an apocalyptic number.

20152613761266 is an abundant number, since it is smaller than the sum of its proper divisors (26091920650254).

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

20152613761266 is a wasteful number, since it uses less digits than its factorization.

20152613761266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88419.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 20152613761266 in words is "twenty trillion, one hundred fifty-two billion, six hundred thirteen million, seven hundred sixty-one thousand, two hundred sixty-six".