20134908645181 has 16 divisors (see below), whose sum is σ = 23424754288320. Its totient is φ = 17103788801280.

The previous prime is 20134908645179. The next prime is 20134908645197. The reversal of 20134908645181 is 18154680943102.

It is a cyclic number.

It is not a de Polignac number, because 20134908645181 - 2¹ = 20134908645179 is a prime.

It is a super-2 number, since 2×20134908645181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134908645101) 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, 387288066 + ... + 387340051.

It is an arithmetic number, because the mean of its divisors is an integer number (1464047143020).

Almost surely, 2^{20134908645181} is an apocalyptic number.

It is an amenable number.

20134908645181 is a deficient number, since it is larger than the sum of its proper divisors (3289845643139).

20134908645181 is a wasteful number, since it uses less digits than its factorization.

20134908645181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774628284.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 20134908645181 in words is "twenty trillion, one hundred thirty-four billion, nine hundred eight million, six hundred forty-five thousand, one hundred eighty-one".