20136474511074 has 40 divisors (see below), whose sum is σ = 45347355662400. Its totient is φ = 6678428721624.

The previous prime is 20136474511057. The next prime is 20136474511079. The reversal of 20136474511074 is 47011547463102.

20136474511074 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 64 + 7 + 4 + 511 + 0 + 74 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20136474511079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 312277374 + ... + 312341849.

It is an arithmetic number, because the mean of its divisors is an integer number (1133683891560).

Almost surely, 2^{20136474511074} is an apocalyptic number.

20136474511074 is an abundant number, since it is smaller than the sum of its proper divisors (25210881151326).

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

20136474511074 is a wasteful number, since it uses less digits than its factorization.

20136474511074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624619436 (or 624619427 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 20136474511074 in words is "twenty trillion, one hundred thirty-six billion, four hundred seventy-four million, five hundred eleven thousand, seventy-four".