63465320019999 has 16 divisors (see below), whose sum is σ = 84860888246784. Its totient is φ = 42189984672000.

The previous prime is 63465320019917. The next prime is 63465320020021. The reversal of 63465320019999 is 99991002356436.

It is not a de Polignac number, because 63465320019999 - 2²¹ = 63465317922847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63465320089999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177321274 + ... + 177678824.

It is an arithmetic number, because the mean of its divisors is an integer number (5303805515424).

Almost surely, 2^{63465320019999} is an apocalyptic number.

63465320019999 is a deficient number, since it is larger than the sum of its proper divisors (21395568226785).

63465320019999 is a wasteful number, since it uses less digits than its factorization.

63465320019999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525518.

The product of its (nonzero) digits is 85030560, while the sum is 66.

The spelling of 63465320019999 in words is "sixty-three trillion, four hundred sixty-five billion, three hundred twenty million, nineteen thousand, nine hundred ninety-nine".