20163724423234 has 48 divisors (see below), whose sum is σ = 35706011878368. Its totient is φ = 8513562915648.

The previous prime is 20163724423223. The next prime is 20163724423301. The reversal of 20163724423234 is 43232442736102.

It is a super-2 number, since 2×20163724423234² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4720989 + ... + 7912975.

It is an arithmetic number, because the mean of its divisors is an integer number (743875247466).

Almost surely, 2^{20163724423234} is an apocalyptic number.

20163724423234 is a deficient number, since it is larger than the sum of its proper divisors (15542287455134).

20163724423234 is a wasteful number, since it uses less digits than its factorization.

20163724423234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192959 (or 3192952 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 43.

The spelling of 20163724423234 in words is "twenty trillion, one hundred sixty-three billion, seven hundred twenty-four million, four hundred twenty-three thousand, two hundred thirty-four".