16546191424 has 63 divisors (see below), whose sum is σ = 38211112173. Its totient is φ = 7088137728.

The previous prime is 16546191413. The next prime is 16546191479. The reversal of 16546191424 is 42419164561.

The square root of 16546191424 is 128632.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7779240000 + 8766951424 = 88200^2 + 93632^2 .

It is a super-2 number, since 2×16546191424² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7202244 + ... + 7204540.

Almost surely, 2^16546191424 is an apocalyptic number.

16546191424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16546191424 is the 128632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16546191424

16546191424 is an abundant number, since it is smaller than the sum of its proper divisors (21664920749).

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

16546191424 is an frugal number, since it uses more digits than its factorization.

16546191424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620 (or 2306 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 16546191424 in words is "sixteen billion, five hundred forty-six million, one hundred ninety-one thousand, four hundred twenty-four".