20014550143 has 24 divisors (see below), whose sum is σ = 25019781552. Its totient is φ = 15905159424.

The previous prime is 20014550131. The next prime is 20014550167. The reversal of 20014550143 is 34105541002.

It is a happy number.

It is not a de Polignac number, because 20014550143 - 2²¹ = 20012452991 is a prime.

It is a super-2 number, since 2×20014550143² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014556143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123496 + ... + 235117.

It is an arithmetic number, because the mean of its divisors is an integer number (1042490898).

Almost surely, 2^20014550143 is an apocalyptic number.

20014550143 is a deficient number, since it is larger than the sum of its proper divisors (5005231409).

20014550143 is a wasteful number, since it uses less digits than its factorization.

20014550143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358711 (or 358704 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20014550143 in words is "twenty billion, fourteen million, five hundred fifty thousand, one hundred forty-three".