20187454606 has 32 divisors (see below), whose sum is σ = 33203520000. Its totient is φ = 9129120000.

The previous prime is 20187454577. The next prime is 20187454621. The reversal of 20187454606 is 60645478102.

It is a congruent number.

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, 6895515 + ... + 6898441.

It is an arithmetic number, because the mean of its divisors is an integer number (1037610000).

Almost surely, 2^20187454606 is an apocalyptic number.

20187454606 is a deficient number, since it is larger than the sum of its proper divisors (13016065394).

20187454606 is a wasteful number, since it uses less digits than its factorization.

20187454606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 20187454606 in words is "twenty billion, one hundred eighty-seven million, four hundred fifty-four thousand, six hundred six".