20120742604 has 12 divisors (see below), whose sum is σ = 35212627800. Its totient is φ = 10059991808.

The previous prime is 20120742599. The next prime is 20120742643. The reversal of 20120742604 is 40624702102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48492 + ... + 206380.

It is an arithmetic number, because the mean of its divisors is an integer number (2934385650).

Almost surely, 2^20120742604 is an apocalyptic number.

It is an amenable number.

20120742604 is a deficient number, since it is larger than the sum of its proper divisors (15091885196).

20120742604 is a wasteful number, since it uses less digits than its factorization.

20120742604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189752 (or 189750 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 20120742604 in words is "twenty billion, one hundred twenty million, seven hundred forty-two thousand, six hundred four".