20372855609042 has 16 divisors (see below), whose sum is σ = 30687553555200. Its totient is φ = 10143672221760.

The previous prime is 20372855609039. The next prime is 20372855609047. The reversal of 20372855609042 is 24090655827302.

It is not an unprimeable number, because it can be changed into a prime (20372855609047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42586634 + ... + 43062362.

It is an arithmetic number, because the mean of its divisors is an integer number (1917972097200).

Almost surely, 2^{20372855609042} is an apocalyptic number.

20372855609042 is a deficient number, since it is larger than the sum of its proper divisors (10314697946158).

20372855609042 is a wasteful number, since it uses less digits than its factorization.

20372855609042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565561.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 20372855609042 in words is "twenty trillion, three hundred seventy-two billion, eight hundred fifty-five million, six hundred nine thousand, forty-two".