20465141551026 has 16 divisors (see below), whose sum is σ = 40954232966400. Its totient is φ = 6817722206288.

The previous prime is 20465141551021. The next prime is 20465141551027. The reversal of 20465141551026 is 62015514156402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20465141551021) 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, 997899906 + ... + 997920413.

It is an arithmetic number, because the mean of its divisors is an integer number (2559639560400).

Almost surely, 2^{20465141551026} is an apocalyptic number.

20465141551026 is an abundant number, since it is smaller than the sum of its proper divisors (20489091415374).

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

20465141551026 is a wasteful number, since it uses less digits than its factorization.

20465141551026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995822033.

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 20465141551026 in words is "twenty trillion, four hundred sixty-five billion, one hundred forty-one million, five hundred fifty-one thousand, twenty-six".