20575156342 has 16 divisors (see below), whose sum is σ = 33257906640. Its totient is φ = 9490192992.

The previous prime is 20575156337. The next prime is 20575156363. The reversal of 20575156342 is 24365157502.

It is a junction number, because it is equal to n+sod(n) for n = 20575156295 and 20575156304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209533 + ... + 291640.

It is an arithmetic number, because the mean of its divisors is an integer number (2078619165).

Almost surely, 2^20575156342 is an apocalyptic number.

20575156342 is a deficient number, since it is larger than the sum of its proper divisors (12682750298).

20575156342 is a wasteful number, since it uses less digits than its factorization.

20575156342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502767.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 20575156342 in words is "twenty billion, five hundred seventy-five million, one hundred fifty-six thousand, three hundred forty-two".