20146635073476 has 30 divisors (see below), whose sum is σ = 52667283665150. Its totient is φ = 6715545024384.

The previous prime is 20146635073471. The next prime is 20146635073519. The reversal of 20146635073476 is 67437053664102.

20146635073476 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 6 + 63 + 507 + 3 + 4 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12523105440000 + 7623529633476 = 3538800^2 + 2761074^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20146635073471) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 31090485901 + ... + 31090486548.

Almost surely, 2^{20146635073476} is an apocalyptic number.

It is an amenable number.

20146635073476 is an abundant number, since it is smaller than the sum of its proper divisors (32520648591674).

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

20146635073476 is a wasteful number, since it uses less digits than its factorization.

20146635073476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62180972465 (or 62180972454 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 20146635073476 in words is "twenty trillion, one hundred forty-six billion, six hundred thirty-five million, seventy-three thousand, four hundred seventy-six".