20261447160144 has 40 divisors (see below), whose sum is σ = 52616114115072. Its totient is φ = 6718455425280.

The previous prime is 20261447160137. The next prime is 20261447160247. The reversal of 20261447160144 is 44106174416202.

It is a junction number, because it is equal to n+sod(n) for n = 20261447160096 and 20261447160105.

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, 1104999949 + ... + 1105018284.

Almost surely, 2^{20261447160144} is an apocalyptic number.

20261447160144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20261447160144 is an abundant number, since it is smaller than the sum of its proper divisors (32354666954928).

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

20261447160144 is a wasteful number, since it uses less digits than its factorization.

20261447160144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210018435 (or 2210018429 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 20261447160144 in words is "twenty trillion, two hundred sixty-one billion, four hundred forty-seven million, one hundred sixty thousand, one hundred forty-four".