20202157909832 has 16 divisors (see below), whose sum is σ = 37881290486400. Its totient is φ = 10100480446800.

The previous prime is 20202157909667. The next prime is 20202157909853. The reversal of 20202157909832 is 23890975120202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74670044 + ... + 74940107.

It is an arithmetic number, because the mean of its divisors is an integer number (2367580655400).

Almost surely, 2^{20202157909832} is an apocalyptic number.

It is an amenable number.

20202157909832 is a deficient number, since it is larger than the sum of its proper divisors (17679132576568).

20202157909832 is a wasteful number, since it uses less digits than its factorization.

20202157909832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149627036 (or 149627032 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 20202157909832 in words is "twenty trillion, two hundred two billion, one hundred fifty-seven million, nine hundred nine thousand, eight hundred thirty-two".