163442542315015 has 16 divisors (see below), whose sum is σ = 197148306424608. Its totient is φ = 130075870519296.

The previous prime is 163442542314911. The next prime is 163442542315061. The reversal of 163442542315015 is 510513245244361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 163442542315015 - 2⁹ = 163442542314503 is a prime.

It is a super-5 number, since 5×163442542315015⁵ (a number of 72 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268084207 + ... + 268693183.

It is an arithmetic number, because the mean of its divisors is an integer number (12321769151538).

Almost surely, 2^{163442542315015} is an apocalyptic number.

163442542315015 is a deficient number, since it is larger than the sum of its proper divisors (33705764109593).

163442542315015 is a wasteful number, since it uses less digits than its factorization.

163442542315015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887298.

The product of its (nonzero) digits is 1728000, while the sum is 46.

Adding to 163442542315015 its reverse (510513245244361), we get a palindrome (673955787559376).

The spelling of 163442542315015 in words is "one hundred sixty-three trillion, four hundred forty-two billion, five hundred forty-two million, three hundred fifteen thousand, fifteen".