20251161365214 has 64 divisors (see below), whose sum is σ = 44070304771584. Its totient is φ = 6166574845056.

The previous prime is 20251161365207. The next prime is 20251161365231. The reversal of 20251161365214 is 41256316115202.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11408244 + ... + 13063320.

It is an arithmetic number, because the mean of its divisors is an integer number (688598512056).

Almost surely, 2^{20251161365214} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20251161365214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22035152385792).

20251161365214 is an abundant number, since it is smaller than the sum of its proper divisors (23819143406370).

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

20251161365214 is a wasteful number, since it uses less digits than its factorization.

20251161365214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656721.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 20251161365214 in words is "twenty trillion, two hundred fifty-one billion, one hundred sixty-one million, three hundred sixty-five thousand, two hundred fourteen".