20187667104429 has 16 divisors (see below), whose sum is σ = 29777455194624. Its totient is φ = 12062626522800.

The previous prime is 20187667104389. The next prime is 20187667104457. The reversal of 20187667104429 is 92440176678102.

It is not a de Polignac number, because 20187667104429 - 2¹⁵ = 20187667071661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20187667104469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4308078559 + ... + 4308083244.

It is an arithmetic number, because the mean of its divisors is an integer number (1861090949664).

Almost surely, 2^{20187667104429} is an apocalyptic number.

It is an amenable number.

20187667104429 is a deficient number, since it is larger than the sum of its proper divisors (9589788090195).

20187667104429 is a wasteful number, since it uses less digits than its factorization.

20187667104429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616161888.

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 20187667104429 in words is "twenty trillion, one hundred eighty-seven billion, six hundred sixty-seven million, one hundred four thousand, four hundred twenty-nine".