20013124535674 has 32 divisors (see below), whose sum is σ = 30360695698944. Its totient is φ = 9893215387440.

The previous prime is 20013124535659. The next prime is 20013124535681. The reversal of 20013124535674 is 47653542131002.

It is a self number, because there is not a number n which added to its sum of digits gives 20013124535674.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397264677 + ... + 1397278999.

It is an arithmetic number, because the mean of its divisors is an integer number (948771740592).

Almost surely, 2^{20013124535674} is an apocalyptic number.

20013124535674 is a deficient number, since it is larger than the sum of its proper divisors (10347571163270).

20013124535674 is a wasteful number, since it uses less digits than its factorization.

20013124535674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25042.

The product of its (nonzero) digits is 604800, while the sum is 43.

Adding to 20013124535674 its reverse (47653542131002), we get a palindrome (67666666666676).

The spelling of 20013124535674 in words is "twenty trillion, thirteen billion, one hundred twenty-four million, five hundred thirty-five thousand, six hundred seventy-four".