20167423721470 has 16 divisors (see below), whose sum is σ = 36301604699808. Its totient is φ = 8066915710560.

The previous prime is 20167423721453. The next prime is 20167423721483. The reversal of 20167423721470 is 7412732476102.

It is a super-2 number, since 2×20167423721470² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20167423721470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129226 + ... + 8163565.

It is an arithmetic number, because the mean of its divisors is an integer number (2268850293738).

Almost surely, 2^{20167423721470} is an apocalyptic number.

20167423721470 is a deficient number, since it is larger than the sum of its proper divisors (16134180978338).

20167423721470 is a wasteful number, since it uses less digits than its factorization.

20167423721470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444515.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 20167423721470 in words is "twenty trillion, one hundred sixty-seven billion, four hundred twenty-three million, seven hundred twenty-one thousand, four hundred seventy".