20143501345 has 16 divisors (see below), whose sum is σ = 26930734848. Its totient is φ = 14338119040.

The previous prime is 20143501303. The next prime is 20143501349. The reversal of 20143501345 is 54310534102.

It is not a de Polignac number, because 20143501345 - 2¹⁵ = 20143468577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20143501349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3893644 + ... + 3898813.

It is an arithmetic number, because the mean of its divisors is an integer number (1683170928).

Almost surely, 2^20143501345 is an apocalyptic number.

It is an amenable number.

20143501345 is a deficient number, since it is larger than the sum of its proper divisors (6787233503).

20143501345 is a wasteful number, since it uses less digits than its factorization.

20143501345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792520.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 20143501345 in words is "twenty billion, one hundred forty-three million, five hundred one thousand, three hundred forty-five".