163445464612547 has 32 divisors (see below), whose sum is σ = 180085691016000. Its totient is φ = 147433680801792.

The previous prime is 163445464612519. The next prime is 163445464612627. The reversal of 163445464612547 is 745216464544361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 163445464612547 - 2¹⁶ = 163445464547011 is a prime.

It is a super-2 number, since 2×163445464612547² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163445464612547.

It is not an unprimeable number, because it can be changed into a prime (163445464612847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43837568 + ... + 47419650.

It is an arithmetic number, because the mean of its divisors is an integer number (5627677844250).

Almost surely, 2^{163445464612547} is an apocalyptic number.

163445464612547 is a deficient number, since it is larger than the sum of its proper divisors (16640226403453).

163445464612547 is a wasteful number, since it uses less digits than its factorization.

163445464612547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582647.

The product of its digits is 232243200, while the sum is 62.

The spelling of 163445464612547 in words is "one hundred sixty-three trillion, four hundred forty-five billion, four hundred sixty-four million, six hundred twelve thousand, five hundred forty-seven".