16455220761 has 8 divisors (see below), whose sum is σ = 25074622144. Its totient is φ = 9402983280.

The previous prime is 16455220729. The next prime is 16455220781. The reversal of 16455220761 is 16702255461.

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

It is not a de Polignac number, because 16455220761 - 2⁵ = 16455220729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16455220721) 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, 391790950 + ... + 391790991.

It is an arithmetic number, because the mean of its divisors is an integer number (3134327768).

Almost surely, 2^16455220761 is an apocalyptic number.

It is an amenable number.

16455220761 is a deficient number, since it is larger than the sum of its proper divisors (8619401383).

16455220761 is an equidigital number, since it uses as much as digits as its factorization.

16455220761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783581951.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 16455220761 in words is "sixteen billion, four hundred fifty-five million, two hundred twenty thousand, seven hundred sixty-one".