16442206512501 has 48 divisors (see below), whose sum is σ = 28004822143488. Its totient is φ = 8484840252000.

The previous prime is 16442206512481. The next prime is 16442206512509. The reversal of 16442206512501 is 10521560224461.

It is not a de Polignac number, because 16442206512501 - 2²² = 16442202318197 is a prime.

It is a super-3 number, since 3×16442206512501³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16442206512501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442206512509) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33425835 + ... + 33914168.

It is an arithmetic number, because the mean of its divisors is an integer number (583433794656).

Almost surely, 2^{16442206512501} is an apocalyptic number.

16442206512501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16442206512501 is a deficient number, since it is larger than the sum of its proper divisors (11562615630987).

16442206512501 is a wasteful number, since it uses less digits than its factorization.

16442206512501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67340182 (or 67340175 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 16442206512501 its reverse (10521560224461), we get a palindrome (26963766736962).

The spelling of 16442206512501 in words is "sixteen trillion, four hundred forty-two billion, two hundred six million, five hundred twelve thousand, five hundred one".