20326761216 has 72 divisors (see below), whose sum is σ = 60109829360. Its totient is φ = 6775584768.

The previous prime is 20326761197. The next prime is 20326761233. The reversal of 20326761216 is 61216762302.

20326761216 is a `hidden beast` number, since 2 + 0 + 3 + 26 + 7 + 612 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463485 + ... + 1477308.

Almost surely, 2^20326761216 is an apocalyptic number.

It is an amenable number.

20326761216 is an abundant number, since it is smaller than the sum of its proper divisors (39783068144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20326761216 is an equidigital number, since it uses as much as digits as its factorization.

20326761216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940818 (or 2940798 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 20326761216 in words is "twenty billion, three hundred twenty-six million, seven hundred sixty-one thousand, two hundred sixteen".