20901146503 has 8 divisors (see below), whose sum is σ = 20991585888. Its totient is φ = 20810837664.

The previous prime is 20901146449. The next prime is 20901146521. The reversal of 20901146503 is 30564110902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20901146503 - 2¹⁷ = 20901015431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20901146543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295350 + ... + 359212.

It is an arithmetic number, because the mean of its divisors is an integer number (2623948236).

Almost surely, 2^20901146503 is an apocalyptic number.

20901146503 is a deficient number, since it is larger than the sum of its proper divisors (90439385).

20901146503 is a wasteful number, since it uses less digits than its factorization.

20901146503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65273.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 20901146503 in words is "twenty billion, nine hundred one million, one hundred forty-six thousand, five hundred three".