20462144514 has 64 divisors (see below), whose sum is σ = 48437760000. Its totient is φ = 5759029584.

The previous prime is 20462144501. The next prime is 20462144609. The reversal of 20462144514 is 41544126402.

It is a super-2 number, since 2×20462144514² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63687 + ... + 212085.

It is an arithmetic number, because the mean of its divisors is an integer number (756840000).

Almost surely, 2^20462144514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20462144514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24218880000).

20462144514 is an abundant number, since it is smaller than the sum of its proper divisors (27975615486).

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

20462144514 is a wasteful number, since it uses less digits than its factorization.

20462144514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148492 (or 148478 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 20462144514 in words is "twenty billion, four hundred sixty-two million, one hundred forty-four thousand, five hundred fourteen".