20462144516 has 24 divisors (see below), whose sum is σ = 39289912704. Its totient is φ = 9247208480.

The previous prime is 20462144501. The next prime is 20462144609. The reversal of 20462144516 is 61544126402.

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 7 ways as a sum of consecutive naturals, for example, 1336460 + ... + 1351683.

It is an arithmetic number, because the mean of its divisors is an integer number (1637079696).

Almost surely, 2^20462144516 is an apocalyptic number.

It is an amenable number.

20462144516 is a deficient number, since it is larger than the sum of its proper divisors (18827768188).

20462144516 is a wasteful number, since it uses less digits than its factorization.

20462144516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688331 (or 2688329 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 20462144516 in words is "twenty billion, four hundred sixty-two million, one hundred forty-four thousand, five hundred sixteen".