20465226336156 has 48 divisors (see below), whose sum is σ = 54735877437696. Its totient is φ = 5829856752384.

The previous prime is 20465226336109. The next prime is 20465226336161. The reversal of 20465226336156 is 65163362256402.

It is a junction number, because it is equal to n+sod(n) for n = 20465226336099 and 20465226336108.

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, 361445946 + ... + 361502561.

It is an arithmetic number, because the mean of its divisors is an integer number (1140330779952).

Almost surely, 2^{20465226336156} is an apocalyptic number.

It is an amenable number.

20465226336156 is an abundant number, since it is smaller than the sum of its proper divisors (34270651101540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20465226336156 is a wasteful number, since it uses less digits than its factorization.

20465226336156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722948858 (or 722948856 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 20465226336156 in words is "twenty trillion, four hundred sixty-five billion, two hundred twenty-six million, three hundred thirty-six thousand, one hundred fifty-six".