16461326560 has 72 divisors (see below), whose sum is σ = 45239274360. Its totient is φ = 5643880704.

The previous prime is 16461326537. The next prime is 16461326561. The reversal of 16461326560 is 6562316461.

It is a super-2 number, since 2×16461326560² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16461326561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041990 + ... + 1057669.

It is an arithmetic number, because the mean of its divisors is an integer number (628323255).

Almost surely, 2^16461326560 is an apocalyptic number.

16461326560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16461326560 is an abundant number, since it is smaller than the sum of its proper divisors (28777947800).

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

16461326560 is a wasteful number, since it uses less digits than its factorization.

16461326560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099688 (or 2099673 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 16461326560 in words is "sixteen billion, four hundred sixty-one million, three hundred twenty-six thousand, five hundred sixty".