20496473215 has 8 divisors (see below), whose sum is σ = 26042577840. Its totient is φ = 15432638592.

The previous prime is 20496473213. The next prime is 20496473219. The reversal of 20496473215 is 51237469402.

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 20496473215 - 2¹ = 20496473213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20496473213) 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, 120567405 + ... + 120567574.

It is an arithmetic number, because the mean of its divisors is an integer number (3255322230).

Almost surely, 2^20496473215 is an apocalyptic number.

20496473215 is a deficient number, since it is larger than the sum of its proper divisors (5546104625).

20496473215 is a wasteful number, since it uses less digits than its factorization.

20496473215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241135001.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 20496473215 in words is "twenty billion, four hundred ninety-six million, four hundred seventy-three thousand, two hundred fifteen".